Planet Maths 4th Class Answers Planet Maths 3rd Class...

Planet Maths 4th Class Answers

163Planet Maths Teacher Resources • 3rd Class

Planet Maths 3rd Class Textbook Answers

Let’s Look Back Page 5

A. 1. 14 2. 16 3. 18 4. 18 5. 4 6. 12 7. 12 8. 15B. 1. 1 6 5 2. 1 8 6 3. 2 2 5 8 4 0 10 5 0 6 3 0 3 2 7 4 2 9 1 4 4C. 1. 41 2. 28 3. 35 4. 16D. 1. 30 2. 60 3. 20 4. 80 5. 90 6. 60 7. 10 8. 90 9. 40 E. 1. 64 2. 34 3. 97 4. 59


A. 1. (a) 8 o clock (b) half one

(c) 14 past 5 (d) 14 to 4

(e) 14 to 8B.

1. 14 2. 1

2 3. 14 4. 1

2C. 1. rectangle 2. circle 3. square 4. triangle 5. oval D. 1. 17c 2. 25c 3. 38c 4. €1.07E. (a) 20c, 20c (b) 20c, 5c (c) 50c, 10c (d) 20c, 10c, 2c (e) 50c, 2c, 1c


A. 1. 99 2. 77 3. 90 4. 66 5. 51 6. 43 7. 39 8. 25 9. 108 10. 32 11. 73 12. 98 13. 91 14. 132 B. 1. 61 2. 4 o’ clock 3. 1

4 4. 50c, 10c 5. 48 6. 4 7. 28 8. 56

Topic: Place value Page 8

B.

1. 18 2. 34 3. 49 D. 1. 3 tens and 5 units 2. 5 tens and 2 units 3. 1 tens and 7 units 4. 5 tens and 5 units 5. 9 tens and 1 unitsE. 1. 7 2. 90 3. 3 4. 8 5. 40 6. 6 7. 80 8. 7 9. 7 10. 90 11. 80 12. 5 13. 70 14. 10 15. 90 16. 60


A. 1. (a) 527 (b) 541 2. (a) 582 (b) 562 B. 1. 40 2. 700 3. 5 4. 100 5. 40 6. 6 7. 6 8. 200 9. 400 10. 200 11. 80 12. 0 13. 60 14. 7 15. 40 16. 90 17. 0 18. 600 19. 800 20. 2 21. 70 22. 300 23. 90 24. 4C. 1. 742 2. 951 3. 730 4. 981 5. 654 6. 850

Topic: Place value 0

A. 1. 67,45,17 2. 89,21,20 3. 120,90,50 4. 573, 572, 356, 245 5. 98, 67, 4 6. 65, 56,12 7. 267, 134, 34 8. 2001, 222, 202, 200 9. 107, 91, 41, 19B. 1. 1 hundred, 5 tens and 6 units 2. 3 hundred, 4 tens and 5 units 3. 6 hundred, 7 tens and 2 units 4. 2 hundred, 5 tens and 1 units 5. 9 hundred, 0 tens and 6 units 6. 5 hundred, 2 tens and 4 units 7. 8 hundred, 4 tens and 0 units 8. 1 hundred, 2 tens and 2 unitsC. 1. 951 2. 999 3. 6 4. hundreds 5. 479 6. 636 7. 7 8. 800 9. 902 D. 1. 10 2. 20 3. 40 4. 50 5. 50 6. 60 7. 50 8. 50 9. 110 10. 250 11. 430 12. 320 13. 620 14. 740


A. 1. 100 2. 200 3. 100 4. 100 5. 200 6. 200 7. 200 8. 300 9. 400 10. 500 11. 800 12. 300 13. 500 14. 800 15. 400 16. 600 17. 100 18. 200 19. 900 20. 300B. 1. 341 – 300 2. 138 – 100 3. 551 – 600 4. 210 – 200 5. 875 – 900

C. 1. 17 2. 12 3. 9 4. 22D. 1. 11 2. 5


B. 1. (a) 4 tens, 5 units (b) 7 tens, 8 units (c) 2 hundreds, 3 tens and 5 units (d) 7 hundreds, 0 tens and 8 units 2. (a) 4 (b) 80 (c) 30 (d) 500 (e) 900 3. (a) 943 (b) 421 (c) 641 (d) 710 (e) 521 4. (a) 87, 127, 507, 692 (b) 89, 387, 452, 701 (c) 3, 39, 451, 647 5. (a) 30 (b) 40 (c) 90 (d) 70 (e) 10 6. (a) 100 (b) 600 (c) 800 (d) 300 (e) 500 D. 1. largest 2. rounded 3. tens 4. nearestE. Clodagh – 347 Ciara – 552 Maria – 954 Sinéad – 568 Naomi – 472

Topic: Addition Page 13

B. 1. 9 2. 6 3. 8 4. 8 5. 12 6. 10 7. 15 8. 12 9. 15 10. 14 11. 12 12. 16 13. 11 14. 18 15. 13 16. 13 17. 12 18. 20 19. 22 20. 24 21. 18 22. 11 23. 15 24. 16 25. 22 26. 16C. 1. 9 4 5 2. 10 5 6 3. 10 12 2 2 6 10 3 7 11 0 8 6 7 8 3 8 9 4 14 4 6 4. 3 10 5 5. 4 11 6 6. 1 6 5 8 6 4 9 7 5 8 4 0 7 2 9 8 3 10 3 2 7


A. 1. 69 2. 69 3. 69 4. 53 5. 74 6. 80 7. 99 8. 94 9. 56 10. 91 11. 82 12. 67 13. 99 14. 83 15. 83 16. 98

164 Planet Maths Teacher Resources • 3rd Class

B. 1. 99 2. 85 C. 1. 129 2. 118 3. 141 4. 150 5. 120 6. 114 7. 179 8. 190 9. 122 10. 147 11. 104 12. 228 13. 164 14. 176


A. 1. 439 2. 423 3. 783 4. 709 5. 532 6. 511 7. 716 8. 910 9. 800 10. 557 11. 415 12. 472 13. 489 14. 738 15. 596B. 1. 735 2. 680 3. 502 4. 439 5. 751 6. 945 7. 874


A. 1. 70 2. 120 3. 130 4. 100 5. 150 6. 170 7. 130 8. 180 9. 210 B. 1. 800 2. 500 3. 800 4. 900 5. 300 6. 600 7. 700 C. 1. 24, 6 2. 47, 43 3. (a) 9 (b) 31 (c) 13 4. (a) 11, 9 (b) 2, 48 (c) 25, 5 (d) 31, 9 (e) 35,25 5. (a) 2, 6, 18, 24, 48 (b) 98D. 1. (a) 75 (b) 135 2. (a) €1.00 (b) €1.80 3. 575

Topic: Addition page 17

B. 1. 18 2. 17 3. 20 4. 69 5. 79 6. 99 7. 95 8. 80 9. 63 10. 73 11. 586 12. 935 13. (a) 100 (b) 90 (c) 70 (d) 90 14. (a) 800 (b) 700 (c) 600 (d) 800C. 1. 58 2. 189 3. 445 4. 380

Topic: Time Page 18

B. 1. 60 2. 60 3. 120 4. 180 5. 24 6. 366 C.

1. (a) 14 (b)

14 past

2. (a) 12 (b)

12 past

3. 14

D. 1. 10 past 4 2. 5 past 7 3. 25 past 10 4. 5 past 12

5. 14 to 1 6. 10 to 4

Topic: Time Page 19

A. 1. 5 past 9 2. 10 past 5

3. 12 past 4 4. 25 past 2

5. 10 past 2 6. 14 past 9

7. 20 past 7 8. 14 past 11 9. 25 past 3 10. 5 past 5C. 1. 20 to 9 2. 25 to 4

3. 10 to 7 4. 14 to 8

5. 10 to 6 6. 5 to 1D. 1. (a) 10 to 3 (b) 10 past 3 2. (a) 5 o clock (b) 20 past 5

3. (a) 12 past 10 (b) 10 to 11 4. (a) 5 past 8 (b) 25 past 8 5. (a) 20 past 6 (b) 20 to 7

Topic: Time 0

A. 1. 1:00 2. 4:05 3. 3:10 4. 8:15 5. 6:20 6. 2:25 7. 9:15 8. 4:35 9. 10:40B. 1. 6:05 2. 2:50 3. 11:20 4. 10:30 5. 5:30 6. 5:35 7. 2:25 8. 6:45 9. 8:20 C. 1. 4:00 2. 7:30 3. 5:00D. 1. 10 past 11 2. 12: 15 3. 10:25 4. 20 past 7

Topic: Time Page 21

A. 1. 2 o’ clock 2. afternoon

3. At the zoo 4. 3 12 hours 5. 2:15 6. 3 hours 7. - 8. €33B. 1. 11: 45 2. 50 minutes 3. 3:10C. 1. 12 minutes 2. 6 minutes 3. Sarah, 30 seconds

Topic: Time Page 22

B.

1. (a) 25 past 8 (b) 14 to 6

(c) 25 to 3 (d) 20 past 7 3. (a) 3:10, (b) 6:40 (c) 9:25 (d) 11:45 4. (a) 20 past 7 (b) 2:30C. He walked the dog at 10:00 He went out to play at 10:15 He ate lunch at 12:00 He called for a friend at 6:30

D. 1. hours 2. 15 3. minutes 4. digital 5. minute 6. hour 7. minutes

Topic: Lines & Angles Page 23

C. 1, 5, 6, 8


A. 1. Vertical 2. Parallel, horizontal and vertical 3. Parallel and horizontal 4. horizontal 5. Parallel and vertical 6. Parallel, vertical and horizontal D. Yes


A. 1. Greater 2. less than 3. right angle 4. less thanB. 1. (a) 3 (b) 4 (c) 0 (d) 5 (e) 5 (f) 4 2. rectangle, arrow and square/diamond 3. (a) 5 angles 0 right angles (b) 4 angles 4 right angles (c) 4 angles 4 right angles (d) 0 angles 0 right angles


B. 1. (a) Parallel or horizontal (b) horizontal (c) vertical 2. square/rectangleC. 1. True 2. False 3. True 4. False 5. True 6. False 7. True 8. TrueD. 1. Parallel 2. angle 3. right 4. horizontal 5. vertical

Maths in a Stadium Page 28

1. 8 2. 48 3. Goal = 8, box = 4, Altogether = 12 4. 42, 347 5. 1 hour 6. 70 7. €3 8. €10 9. €80 10. 2:20:23 11. Away team 12. 287 13.

14 to 4

14. 436 15. 214


Mental Maths 1 Pages 30 and 31

A. 1. 18 2. 60 3. 50c, 20c, 10c 4. 5:00 5. 12c 6.

12 7. 6

8. 30 9. 421 10. 8B. 1. Horizontal 2. 15 3. 20 4. 2:30 5. 20c 6. square 7. 10 8. 10c 9. 5 10. 3C. 1. 900 2. 115 3. 4 4. Yes

5. 14 past 6

6. 4 + 4 + 4 + 4 + 4 + 4 = 24 7. 279 8. 230 9. 18 10. Yellow rightD. 1. 18 2. 6:20 3. 50c 4. Parallel 5. 3 6. b 7. 831 8. 10 9. cube 10. 100

Topic: Subtraction 2

B. Starting at the top going clockwise 20 – 5 = 15 half 20 = 10 15 – 0 = 15 20 – 6 = 14 18 – 4 = 14 30 – 16 = 14 20 – 4 = 16 23 – 3 = 20 26 – 10 = 16 half 40 = 20 half 30 = 15 22 – 8 = 14 24 – 10 = 14 28 – 14 = 14C. 1. 8 2. 21 3. 8 Challenge: BJ made the star cookies Matt made the heart cookies Sara made the circular cookiesD. 1. 11 2. 51 3. 41 4. 10 5. 51 6. 54 7. 12 8. 1 9. 44 10. 20 11. 27 12. 10 13. 11 14. 49 15. 41 16. 47

Topic: Subtraction Page 33

A. 1. 9 2. 19 3. 17 4. 28 5. 17 6. 16 7. ? 8. ? 9. 28 10. 37 11. 26 12. 10 13. 44B. 1. 40 2. 28 3. 56 4. 13 5. 4 6. Chocolate bars as there are less left 7. 50c

C. 1. 109 2. 219 3. 71 4. 503 5. 174 6. 209 7. 177 8. 99 9. 72 10. 307 11. 23 12. 289


A. 1. 219 2. 444 3. 534 B. 1. 189 2. 188 3. 89 4. 183 5. 489 6. 258 7. 259 8. 89 9. 79 10. 179 11. 279 12. 357C. 440 – 220 – 64 – 19 – 384 – 372- 0D. The two children go over One comes back One man goes over One child comes back two children go over One child comes back One man goes over One child comes back Two children go over


A. 1. 59 2. 119 3. 33 4. 139 5. 24 6. 66 7. 38 8. 69 9. 24 10. 79 11. 448 12. 73B. 1. €14.59 2. Giant art set 3. €1.60 4. 2 for €20 5. €7.98 6. – 7. (a) 60 (b) – 8. €5.41 Challenge: 1. 1, 2, 4, 5 or 6 2. 17 3. -


B. 1. 26 2. 55 3. 41 4. 63 5. 11 6. 39 7. 6 8. 18 9. 19 10. 9 11. 109 12. 178 13. 48 14. 187 15. 383 16. 149C. 1. 64 2. 22 3. 594 4. 34 5. 22 D. 1. True 2. False 3. True 4. False

Topic: Fractions Page 37

C. 1. 2 2. 4 3. 2


A. b and c

B. 1, 2, 4, 6, 7, 9, 10C.

0, 14, 12, 34, 1 unit


A.

1. (a) 28 or 14 (b) 38

(c) 48 or 12 (d) 18 (e) 7

8

3. (a) 24 (b) 28 (c) 4

4 (d) 68

(e) 88 (f) 48 (g) 2

2 (h) 48

(i) 88 (j) 14 (k) 6

8 (l) 44

4. (a) Luke (b) Tony (c) Alan (d) Sinead


A.

1. 28, 48 or 24, 68 or 34, 78

2. (a) 18, 14, 12 (b) 58, 34, 78

(c) 12, 68, 44 (d) 12, 34, 78,

(e) 12, 34, 1 (f) 14, 48, 34

(g) 38, 12, 1 (h) 18, 14, 34

(i) 18, 12, 78 (j) 14, 58, 34

(k) 12, 58, 34 (l) 34, 58, 1

B.

1. (a) 1 and 18 (b) 1 and 58

(c) 212 (d) 1 and 14 (68)

2. (a) 18, 38, 24,112, 15

8, 134, 21

8, 278, 3

(b) 28, 1, 168, 21

4, 2 24, 3 24, 358

C.

1. 12 2. 12 or 24

3. 14 4. 58

Challenge: 14 or 28


B.

1. (a) 12 or 24 (b) 34

(c) 78 (d) 68or 34

2. (a) 24 (b) 34

(c) 22 and 88 (d) 28

3. (a) 18,

14,

12 (b)

18,

38,

58

(c) 12,

34,

78 (d)

14,

48,

78

C.

1. 34 2.

38 3.

12 or

24

4. 14 5.

38

D. 1. Fraction 2. two 3. quarter 4. halvesE. 1. Sarah ate the sausage pizza 2. John ate the Plain pizza 3. Jamie ate the Mushroom pizza 4. Lynn ate the Pepperoni pizza


Topic: Graphs 2

B. 1. P.E 2. Maths 3. 5 4. –

5. – 6. 12

7. P.E, Music and Art

Topic: Graphs Page 43

A. 1. - 2. Scuttles and bananas 3. 5 4. 30 5. – 6. – 7. –Challenge: 1. Selling price: 50c, 60c, 45c, 40c, 65c,

45c, 30c 2. €9 or €2 profit 2. €9.15 or €2.30 profit


B. 2. (a) Kreatures (b) 34 (c) 7 (d) 2 (e) – 3. 17 4. €27


A. 1. cat – 5 dog – 10 Goldfish – 6 Horse – 1 Guinea Pig – 5 Rabbit – 3


C. Strawberry – 10 Chocolate – 30 Mint – 5 Cookies and cream – 20 Caramel - 15E. Dog –6 Gerbil – 2 Fish – 8 Parrot – 1 Cat – 4 Hamster – 10

Topic: Multiplication Page 47

B. 1. 2,4,6,8,10,12 2. 14,16,18,20,22,24,26,28,30 3. 10,15,20,25,30,35,40,45,50,55,60 4. 3,4,5,6,7,8,9,10,11C. 1. 2+2+2+2+2+2 = 12 or 6 x 2 =12 2. 5 x 2 = 10 3. 10 x 2 = 20 4. 7 x 2 = 14 5. 2 x 2 = 4 6. 8 7. 18 8. 0 9. 16


A. 1. 6 x 5 = 30 2. 4 x5 =20 3. 5 x 3 = 15 4. 35 5. 10 6. 50 7. 15 8. 45 9. 5 10. 10 11. 40 12. 15

B. 1. 30 2. 8 3. 50C. Should only have 4 lily pads 1. 2,2,5,5 2. 2,3,4, 5


A. 1. 10,20,40,50,60,80,100 2. 6 x 10 = 60 3. 8 x 10 = 80 4. 10 5. 40 6. 100 7. 0 8. 3 x 10 9. 70 10. 40B. Three 10c stamps and five 5c stamps 3 10c stamps – 3 x 10 = 30c 5 5c stamps – 5 x 5 = 25c


A. 1. 50c 2. 2c x 5 = 10c 3. 5c x 6 = 30c 4. 10c x 2 -= 20, 2c x 1 = 2c, 5 x 3 =

15c (37c) 5. 10c x 3 = 30c, 5c x 4 = 20c, 2c x 2 =

4 (54c) 6. 10c x 4 = 40c, 2c x 4 = 8 (48c)B. 1. 10 2. 10 3. 60 4. Carol - 9 5. 5 x 10 =50


B. 1. (a) 8,10,12,14,16,18,20 (b) 10,20,25,30,40,45,50 (c) 30,40,50,70,80,90,100 2. 4 x 2 = 8 3. 6 x 5 = 30 4. 3 x 10 = 30 5. 5 x 2 = 10C. 1. €12 2. (a) €25 (b) €8 3. Second hand – Save €10D. 1. True 2. False 3. TrueE. (a) 10 (b) 45

Fright Night Page 53

1. 31st October 2. 48 3. 30

4. 3 5. 36 6. 2 7. 28 or

14

8. 12 9. 15 10. 12 5 or 5:30

11. 14 12. 75 13. 5 14.

34

15. 2


A. 1. €1, 50c, 10c 2. 3 3. €1 4. 80 5. cube 6. 200 7. 3 o clock 8. 60c 9. circle 10. 30

B. 1. 50 2. 5 3. 7 4. 2

5. – 6. 60 7. 14 8. 8 >

9. 8 10. 700C. 1. 2 2. 4 3. 10 4. 25 to 11 5. 3

6. 26 or

13 7. kilograms

8. 7 9. 28 10. 20

D. 1. 20 2. d 3. 13 4. 20 5. a 6. 5 7. swimming 8. 15 9. 70 10. 60

Topic: Division Page 56

B. 1. 3 2. 5C. 1. 5 2. 2,6,7,8,9,10D. 1. 5 2. 6 3. 10 4. 1 5. 4 6. 8 7. 3 8. 9

9. 7


A. 1. 10÷ 5 = 2 2. 20 ÷ 5 = 4B. 1. 6 2. 9 3. 10 4. 7 5. 6 6. 10 7. 3 8. 8 9. 5 10. 10 11. 7 12. 7 13. 9 14. 10C. Jason and Ian John and Juanita Kathy and Oliver Sue and SteveD. 30 ÷ 10 = 3


A. 1. 90÷10 =9 2. 70÷10 =7B. 1. 3 2. 7 3. 6 4. 10 5. 10 6. 8 7. 3 8. 2 9. 5 10. 9 11. 3 12. 9 13. 9 14. 3 15. 8 16. 3Challenge: 2 each


A. 1. 10 2. 3 3. 5 4. 9 5. 8B.Examples Sally = €5 Nicola = €2, €2, €1 Jenny = €1, €1, €1, €1, €1 Larry: €2,€1, €1,50c, 50c Paul: €2, 50c, 50c, 50c, 50c, 20c,


20c, 20c, 20c, 20c Sally =€2,€1, €1, €1 Nicola = 50c, 50c, 50c, 50c, 50c, 50c,

€1, €1 Jenny =, 20c, 20c, 20c, 20c, 20c, €2,

€2 Larry:,€2,€1, €1, €1 Paul: €5


B. 1. 6 2. 4 3. 5 4. 9 5. 7 6. 4 7. 6 8. 9 9. 5 10. (a) 8 (b) 6C. 1. 7 2. 10 3. 4 4. 6D. share, share equally, division, divide,

group, equal groups ofE. Example answer Basket 1 : 20 Basket 2: 30 Basket 3: 50

Topic: Decimals Page 61

B. 1. (a)

210 (b)

110 (c)

310 (d)

410

(e) 510

C.

Top 12, 1 unit, 1

12 , 1

34

Bottom – 310,

410,

510,

610,

710,

910,

1210,

1410,

1510,

1610,

1810,

1910


A. 1. (a) 0.4 (b) 0.6 (c) 0.3 (d) 0.7 (e) 0.2 2. - 3. - 1. (a) 9

10 (b) 810 (c) 5

10 (d) 110

B. 1. 0.4 2. 0.1 3. 0.6 4. 0.9D.

Top line: 210,

710,

810

Bottom line: 0.1, 0.3, 0.4, 0.6, 0.8, 0.9


A. 1. False 2. True 3. True 4. False 5. True 6. False 7. True 8. FalseB. 1. (a) 1.2 (b) 2.5 (c) 3.7 (d) 4.1 (e) 6.3 (f) 5.9

2. (a) 1 510 or 1

12

(b) 1 910 (c) 2

610

(d) 8 410 (e) 5

710

(f) 3 110 (g) 4

710

(h) 7 210

C. 1. < 0.5 2. 0.9 > 3. < 1.0 4. < 0.3 5. = 6. < 0.6 7. 2.1 > 8. = 9. 4.1 > 10. 6.1 >


A. 1. (a) 9.6 (b) 76.1 (c) 23.6 2. (a) 41.3 (b) 4.3 (c) 12.3 3. (a) 51.3 (b) 15.7 (c) 5.2 4. (a) 31.5 (b) 3.2 (c) 13.6C 1. (a) Radio (b) Price (c) Car (d) Petrol (e) Thermometer (f) Fair ground height restriction 2. 37.9 c 3. 90 kmph, kilmometers per hour 4. 119.9 c per litre of diesel 5. Unleaded 6. 0.75 = 75cm or 0.75m


B. 1. - 2. 5 3. 2 4. 1 5. - 6. 0.1, 0.3, 0.4, 1.0, 3.0, 4.6, 5.0, 12.6C 1. False 2. False 3. True 4. False 5. TrueD. 1. Fraction 2. Decimal point 3. decimal fraction 4. tenth

Topic: Money Page 66

B. 1. 1c 2. €2 3. 100C. 1. (a) 86c (b) 81c (c) 76C 2. 4C 3. – 4. 8 5. Comic and colaD. 1. €2 2. cola – 50c, 10c, 5c, 1c skittles – 20c, 10c, 5c comic – 50c, 20c, 2c 2 apples – 20c, 5c, 2c, 1c 4 sweets – 20c

Topic: Money page 67

A. 1. 34c 2. 56c 3. 87c 4. €1.49B. 1. 20c, 2c 2. 20c, 10c, 5c, 1c 3. 50c, 2c, 2c 4. 50c, 20c, 20c, 5c,2 5. €1, 20c, 5c 6. €2, 20c, 10c, 5c, 1c 7. 20c, 5c, 1c 8. 20c, 20c,5c, 2c,2c 9. 50c, 20c, 5c, 2c,1,

10. €1, 10c 11. €1, 50c, 10c, 2c,2c 12. €2, €1, 20c, 20cC. Sue: 20c, 5c, 2c, 1c Emma: 10c, 5c, 5c, 5c, 2c, 1c or

20c, 5c, 1c, 1c, 1c Jack: 20c, 2c, 2c, 2c, 2cD. 1. (a) €2, €1, 50c (b) €1, 50c, 20c, 20c, 5c, 2c, 2c (c) €1 (d) €2, 20c,20c, 5c,2c,2c 2. €1.50, €3.01, €4, €2.51 3. -


A. 1. €0.43 2. €0.68 3. €0.98 4. €1.55 5. €1.20 6. €2.70 7. €3.07 8. €4.76 9. €0.03 10. €0.06B. 1. €3.99 2. €1.87 3. €3.91 4. €7.18 5. €10.19 6. €7.33 7. €4.01 8. €12.30 9. €6.67C. 1. €1.11 2. €3.11 3. €2.03 4. €3.34 5. €2.89 6. €1.08 7. €1.78 8. €0.69 9. €1.17D. 1. €5.69 2. (a) €4.05 (b) € 6.50 3. (a) €1.50 (b) €1.20 (c) €1.73 (d) €1.22


A. 1. €2 2. €1.60 3. 30c 4. €1.30 5. €1B. 1. €15 each 2. - 3. Caoimhe’s share €8, €7 €8, €6, €1 €8, €5, €2 €8, €4, €3 €8, €4, €2,€1C. 1. €5 2. (a) 7 (b) €5, €10, €20, €50, €100, €200, €500 3. 17


B. 1. (a) 64c (b) €1.72 (c) €2.61 2. (a) 50c, 5c, 1c


(b) €1, 20c, 20c, 5c, 2c, 1c (c) €2, €1, 50c, 10c, 5c, 2c (d) €2, €1, 20c, 10c, 5c, 2c 3. (a) €0.48 (b) €1.34 (c) €0.03 (d) €3.29 4. (a) €3.12 (b) €7.45 (c) €0.09 (d) €1.59C. Alison: Green tray Joe: Blue Tray Steve: Yellow Tray Eva: Red TrayD. 1. Cent 2. Euro 3. Value 4. Coin 5. Note

Topic: Problem Solving Page 71

A. 1. 7 2. 8 3. 60 4. 14 5. 22B. 1. 23 2. 44


A. 1. 33 2. 58 3. 59 4. 12 5. 42B. 1. 655 2. 334 3. 867 4. 39 5. 211 6. 67


A. 1. 4 2. 13 3. 22B. 1. 21 2. 49 3. 403C. 1. 4 2. 11 3. 9D. 1. 12 2. 33 3. 63E. 1. 3 2. 12


1. 2 1 4 33 4 2 11 2 3 44 3 1 2

2. 2 3 1 44 1 2 31 4 3 23 2 4 1

3. 3 6 2 4 1 54 5 1 3 2 66 2 3 5 4 11 4 5 2 6 32 3 6 1 5 45 1 4 6 3 2

4. 6 3 1 4 2 52 5 4 1 3 64 2 6 5 1 33 1 5 2 6 45 6 2 3 4 11 4 3 6 5 2

5. 2 1 5 6 4 36 3 4 5 1 24 5 6 2 3 11 2 3 4 5 65 6 1 3 2 43 4 2 1 5 6

6. 6 1 2 4 5 34 3 5 6 1 25 2 6 1 3 43 5 1 2 6 51 5 4 3 6 22 6 3 5 4 1

B.Name Age BalloonBeth 5 blue Sue 6 greenPeter 7 yellow

Adam 8 red


A. 1. blue, red, purple, red, blue 2. purple, purple, green, green, purple 3. white, pink, white, pink, blue

B.

C. Sheep goes over Boat goes back Cabbage goes over and the sheep

goes back Wolf goes over Boat goes back Sheep goes over

Day at the Fun Fair Page 76

1. €10 2. 8 3. €12 yes 4. 0.2 metres 5. 0.2 metres

6. 810 7.

210 8. 12 9. 4

10. 283 11. 194 12. 26 13. €6


A. 1. 70c 2. 9:20 3. 30 4. 3 5. – 6. False 7. 14 8. 9:20 9. €1, 50c, 20c, 5c 10. 3B. 1. 19 2. 2 3. 9 4. €1.60 5. 6 + 6 = 12 6. 12 o clock 7. 0.9 8. 50m 9. pink circle 10. 269C. 1. 10c 2. 30 3. 6 4. €80 5. €1.77 6. 4 7. 65, 60, 55 8. 15 9. 1: 40 or 20 to 2 10. 2D.

1. 41 2. 90 3. 14 to 9

4. 38 5. c 6. 60 7. 50

8. 10 9. c 10. 15

Topic: Length Page 80

C. 1. 7cm 2. 5cm 3. 11cm 4. 4cm 5. 3cm 6. 2cm


B.

1. False 2. True 3. True 4. False 5. False 6. False 7. True 8. True


A. 1. (a) 1m 50cm (b) 1m 40cm (c) 1m 45cm (d) 1m 73cm (e) 1m 98cm (f) 1m 4cm (g) 2m 30cm (h) 2m 56cm 2. (a) 250cm (b) 801cm (c) 910cm (d) 378cm (e) 427cm (f) 300cm (g) 704cm (h) 632cm (i) 518cmB. 1m 71cmC. 1. 4m 05cm 2. 3 m 83 cm 3. 4 m 13 cm 4. 5 m 89 cm 5. 6 m 68 cm 6. 6 m 18 cm 7. 9 m 12 cm 8. 9 m 10 cmD. 1. 1m 12 cm 2. 2m 09 cm 3. 1m 89 cm 4. 2m 88 cm 5. 3m 78 cm 6. 73 cm 7. 39 cm 8. 49 cm 9. 1m 65cm


A. 1. 92cm 2. 107cm 3. 500cm or 5m 4. 16 5. 13cm 6. 10B. 1. 7m20cm 2. 5m 15cm 3. 16m 62cm 4. 7m 24cm 5. 12m 94cm 6. - 7. Monkey, lion, polar bear, penguin,

elephant,panda and giraffe 8. 17m 57cm


B. 1. (a) 5 cm (b) 3cm (c) 6cm 2. (a) 1m 40cm (b) 2m 15cm (c) 1m96cm (d) 110cm (e) 187cm (f) 234cm 3. (a) 2m 77cm (b) 4m 30cm (c) 3m 82cm (d) 6m 39cm (e) 2m 56cm (f) 91cm (g) 1m 12cm C. 1. 450cm or 4m 50cm 2. 20cm 3. 3m 15cmE. Jody: Carrot Chris: Pencil Chloe: Wheenbarrow David: Football pitch

Topic: Multiplication 2 Page 85

B. 8,12,16,20, 24,28, 32,36, 40D.


1. 12 2. (a) 12 (b) 8 3. 12 4. 8 5. 20 6. 40 7. 36 8. (a) 90 (b) 360


A. 1. (a) 4 + 4 +4 + 4+4 + 4 +4 + 4 = 32 (b) 8 x 4 = 32 2. (a) 4 +4 + 4= 12 (b) 3 x 4 = 12 3. (a) 4 + 4 +4 + 4+4 + 4 = 24 (b) 6 x4 = 24 4. (a) 4 + 4 +4 + 4+4 + 4 +4 + 4 + 4 = 36 (b) 9 x 4 = 36B. 1. 2 x 4 =8 2. 9 x 4 = 36C. 1. (a) 32 (b) 16 (c) 20 (d) 40 2. (a) 12 (b) 28 (c) 8 (d) 4 3. 28


A. 1. 16, 24, 32, 40 2. 8, 16, 24, 32, 40, 48, 56, 64, 72, 80 3. 8, 16, 24, 32, 40, 48, 56, 64, 72, 80B. 1. (a) 8 + 8 + 8 + 8 + 8 + 8 = 48 (b) 6 x 8 = 48 2. (a) 8 + 8 + 8 + 8 + 8 + 8+ 8 + 8+

8 = 72 (b) 9 x 8 = 72 3. (a) 8 + 8 + 8 = 24 (b) 3 x 8 = 24C. 1. – 2. 80


A. 1. (a) 64 (b) 80 (c) 16 (d) 40 2. 56 3. 32 4. 48 5. 72B.Clockwise from top 1. 10, 6, 16,18,14,20,8,12 2. 20,36,8,12,32,24,16,28 3. 56,24,64,32,80,40,0,8C. 1. €48 2. (a)€24 (b) €24 3. (a) €66 (b) €84


B. 1. 12,16, 24,28,32, 2. 16,24,40,48,56, 72, 80 3. 4 + 4 + 4 = 12 4. 8 + 8 + 8 + 8 + 8 + 8 = 48 5. 5, 10 6. 8, 40 7. 32 8. 27 9. 24 10. 28

11. 4 12. 0 13. 3 14. 10 C. 1. 5 2. 10 D. 1. Multiple 2. multiply, forty eight 3. times 4. AltogetherE. 1. Bart – 10 Kate – 24 Claire – 28 2. 62

Topic: Division 2 Page 90

B. 1. 3 2. 5C. 1. (b) 2


A. 1. 6 2. 10 3. 2 4. 8B. 5 C. 1. 2 2. 4 3. 3 4. 10D. 1. 9 2. 7 3. 4 4. 8 5. 7 6. 2 7. 8 8. 10 9. 10 10. 4 11. 1 12. 6


A.

1. 9 2. 9 3. 4Challenge 1. 9 2. 10


A. Mystery no. 7B. On the board : A 619 B 3 C 444

( All connected to time) D divide 1. 28 2. 619 and 13 3. 8 4. Numbers to do with time – months in

a year, minutes in an hour, days in a week, days in a year

5. divide 6. 8 7. 92 8. 3 9. 3Challenge: 325


B. 1. (a) 24 ÷ 4 = 6 (b) 56 ÷ ___ = ____ 2. 7 3. 8 4. 2 5. 5 6. (a) 4 (b) 9 (c) 7 (d) 8C. 1. 5 2. 9 3. 4D.

share equally three divideE.

Topic: Chance Page 95

B. 2. (a) certain (b) possible (c) certain (d) possible (e) impossible (f) possible (g) possible (h) impossible (i) certain


A. 1. Likely 2. Unlikely 3. Unlikely 4. Unlikely 5. Unlikely 6. Likely 7. Unlikely 8. UnlikelyB. 1. Likely 2. Unlikely


A. 1. (a) Unlikely (b) Certain (c) Likely (d) Impossible (e) Unlikely (f) Likely (g) Certain (h) Impossible


A. 1. 3,1,2 2. Depends on the season/time of year 3. 2,1,3 4. Depends on the day 5. 2,3,1


B. 1. (a) Depends on the day (b) - (c) Depends on the time of year (d) Unlikely (e) Certain/Likely (f) Unlikely (g) Unlikely 2. (a) Impossible (b) Unlikely/possible (c) LikelyC. No, Jo is more likely to win as there is

a greater chance that 2 blue ribbons will be pulled out.

D. 1. Impossible 2. – 3. Unlikely


Marvin the Great! Pages 100 and 101

1. Likely/possible 2. Impossible 3. Impossible 4. Likely 5. – 6. 36cm 7. 1m 80cm 8. 3 9. 32 10. cups/hat/balls

11. 14 12. €58

13. sphere


A 1. 150cm 2. 19 3. 4 4. red 5. 90cm 6. 36 7. pentagon 8. 950 9. 64 10. 9B. 1. 10m 2. 201

3. cylinder 4. 4:30 or 12 4 5. 25, 20 6. ÷ 7 .– 8. 200

9. 118 10. greater

C. 1. Impossible 2. 5:30 3. 60c 4. Change sum 5. Horizontal dots 6. False 7. 3.1 8. 60 9. 36 10. 2, 4D. 1. 750g 2. 10 3. 6 4. c 5. 20 to 7 6. 3 7. B 8. vertical 9. 400 10. 48

Topic: Fractions 2 Page 104

B. 1. 5 2. 3C. 1. (a) 5 (b) 3 (c) 2 (d) 6 2. (a) 3 (b) 2 (c) 5


A. 1. 5 2. 10 3. 4 4. 8 5. 6 6. 2 7. 7 8. 6 9. 3 10. 8B. 1. 7 2. 7 3. 4 4. 4 5. 9 6. 3 7. 6 8. 15 9. 5 10. 23C. 1. 5 2. 6 3. 8 4. 16 5. 12 6. 4D. 1. (a) 3 (b) 3 2. 8, 2, 4

Topic: Fractions 2 Page106

A. 1. (a) 10 (b) 9 (c) 2 2. 2 3. 5 4. 10 5. 7 6. 6 7. 9 8. 1 9. 4B. 1. 5, 10 2. 24 3. 6Puzzle: 12


A. 1. 12 2. 20 3. 24 4. 16 5. 50B. 1. (a) 9 (b) 14 (c) 18 (d) 36 2. (d) green car 3. (b) blue car as a full tank only needs 16¬ 4. -


B. 1. 5 2. 2 3. 3 4. 8 5. 9 6. 5 7. 4 8. 9 9. 4 10. 2 11. 10 12. 7 13. (a) 12 (b) 16 (c) 16 (d) 100C. 1. 10 Jellies 2 pieces of pizza 4 buns 6 cherry tomatoes 1 carton of juice 2. 5 Jellies 1 pieces of pizza 2 buns 3 cherry tomatoes

12 a carton of juice

E. 12


B. 1. 18 2. 90 3. 27 4. 9 5. 60 6. 27


A. 1. 15 2. 27 3. 9 4. 30 5. 24 6. 0 7. 54 8. 48 9. 18 10. 12 11. 0 12. 81 13. 0 14. 21 15. 54B. 1. 6 + 6 + 6 = 18 2. 9 + 9 + 9 + 9 + 9 = 45 3. 7 + 7 + 7 = 21 4. 6 + 6 + 6 + 6 + 6 + 6 = 36 5. 9 + 9 = 18 6. 8 + 8 + 8 = 24C. 1. 4 x 5 = 20 2. 5 x 6 = 30

3. 6 x 7 = 42 4. 9 x 2 = 18 5. 2 x 2 = 4 6. 6 x 2= 12D. 1. 24 2. 27 3. 36 4. 15 5. 18 6. 24 7. 45 8. 12


A. 1. 21 2. 14 3. 56 4. 12B. Square mealsC. 1. 7 2. 4 3. 28 4. 4 5. 52 6. 70 7. 35 8. Monday


A. 1. 42 2. 60 3. 65 4. 70 5. 36 6. 56C. 1. 75 2. 52 3. 54 4. 76 5. 48 6. 26


B. 1. 35 2. 9 3. 72 4. 42 5. 6 + 6 + 6 = 18 6. 7 + 7 + 7 + 7 = 28 7. 9 + 9 = 18 8. 3 + 3 + 3 + 3 +3 = 15 9. 45 10. 114 11. 42 12. 128C. 1. 2, 8, 1, 2, 2, 4, 4, 1, 4 2. 3, 2, 2, 4, 1, 3, 1, 6, 2D. 1. multiple 2. times 3. multiplied 4. groupsE. 63

Topic: Weight Page 115

A.

1. 412 kg, 23

4 kg, 514 kg, 33

4 kg

2. 3kg, 114 kg, 33

4 kg, 214 kg

3. 2kg, 14 kg, 234 kg, 11

4 kg 4. –

5. 814 kg or 8kg 250g

6. 5kg, 112 kg, 61

2 kg, 312 kg

B. 1. (a) 700g (b) 657 g (c) 616 g (d) 463 g (e) 692 g 2. (a) 639 g (b) 524 g (c) 311 g (d) 387 g (e) 626 g 3. 577 g 4. 112g, 210g



A. 1. (a) 322 g (b) 491 g (c) 322 g (d) 287 g (e) 689 g 2. 165 g 3. 1,220 gB. 1. (a) 6kg 140g (b) 5 kg 600g (c) 4 kg 930g (d) 1 kg 280g (e) 4kg 430g (f) 1kg 752g 2. (a) 9kg 350g (b) 9kg 230g (c) 9kg 530g (d) 6kg 257g (e) 5kg 088g 3. 260g, 440g, 960g, 570g 4. (a) 240g


B. 1. (a) 70kg (b) 90 kg (c) 80kg 2. The second trip 3. The first trip 4. The first trip 5. The second trip 6. 240 kg 7. €240 8. The raft would topple or sink 9. 4


1. (a) 997g (b) 947g (c) 874g (d) 1421g 2. (a) 6kg 013g (b) 7kg 470g (c) 3kg 142g (d) 3kg 774g 3. (a) 150g (b) 90gC. 1. 1kg 700g 2. SameD. 1. grams 2. kilograms 3. estimating 4. heavierE. Well 1 kg must equal 12 a brick as a

brick can only be 12 plus 12. Therefore a brick weighs 2kg

Topic: 2D Shapes Page 119

B. 1. Rectangle 2. Circle 3. Triangle 4. Semi-circle 5. Square 6. Oval


A. Any 6 sided shapeB. 1. Circles, triangles, rectangles,ovals,

hexagons


A. 1. Regular: a, b, d, h Irregular: c, e, f, g, i 2. Irregular as all angles are not the same

and it is not symmetricalC. 1, 2, 4, 6


A. 1. a, d, g


B. 1. Circle, hexagon, triangle, ovalC. Bird and a mouse. They are both

animalsD. 1. triangle 2. semi-circle 3. square 4. circle 5. regularE. 1. 7 2. 17 +

Emma’s Kitchen Pages 124 and 125

1. 12

2. squares and triangles 3. 750g 4. 8mins 5. – 6. Yes, they fit together like a jigsaw 7. 50 minutes 8. 3, 3 9. 3 10. – 11. 6 eggs, 500g of flour, 400g of butter,

400g of sugar, 2 tsp of baking powder, 100m¬ of milk

12. 2kg 250g 13. 250g 14. €2.11 15. -


A. 1. 4 2. 850g 3. hexagon 4. 4 5. 10 to 2 or 9:50 6. 90cm 7. 42 8. 4 9. True 10. EricB. 1. 167 2. 0 3. d 4. €1, 50c, 20c, 10c, 5c, 2c, 1c 5. 8 6. 90c 7. 3 8. 0.4 9. – 10. 3:30C. 1. oval 2. heavier 3. 102 4. 1.9 5. 12 6. 9

7. 1kg 375g 8. – 9. yes 10. €54.50D. 1. c and d 2. 600g 3. 2 4. 6 5. 10 ( It is possible to find lots more) 6. 10 7. a 8. 2 9. 4 10. 4

Topic: Number Patterns and Sequences Page 128

B. 3. yellow, green, red, orange, yellow,

green 5. red, blue, purpleC. 1. AE, AF, AG, AH 2. EF, FG, GH, HI 3. VU,UT,TS,SR 4. EV,FU,GT,HS 5. 523, 623,723 6. 468,579,6810, 7911 7. HSMAT, SMATH, MATHS 8. lcoo, cool, oolc, olco


B. 1. (a) 77, 88, 99, 110 (b) 30, 20, 10, 0 (c) 20, 24, 28, 32 (d) 12, 8, 4, 0 (e) 40, 35, 30, 25 (f) 15, 12, 9, 6 2. (a) 95, 94, 93, 92 (b) 33, 22, 11, 0 (c) 15, 18, 21, 24 (d) 21, 14, 7, 0 (e) 45, 36, 27, 18 (f) 15, 21, 28, 36 3. (a) 56, 48, 40, 32 (b) 22, 16, 10, 4 (c) 79, 77, 75, 73 (d) 22, 17, 11, 4 (e) 28, 34, 41 (f) 30, 20, 15 4. (a) 650, 750, 850 (b) 655, 654, 653 (c) 195, 190, 185 (d) 898, 894, 890 (e) 593, 584, 575 (f) 892, 896, 900C. 1. 4 2. 14 3. 24 4. (a) 34 (b) 44 (c) 54 (d) 64


A. 1. 6 2. 11 3. 14 4. 11 5. 8 6. 18 7. 34 8. 27B. 1. 26 2. 17 3. 26 4. 55 5. 21 6. 42


C. 1. 5, 5, 2, 1, 4, 7, 6, 3, 3 2. 5, 11, 2, 3, 6, 9, 10, 1, 7 3. 9, 2, 10, 8, 7, 6, 4, 12, 5 The magic number is 21 4. 5, 10, 9, 9, 8, 4, 7, 6, 11 The magic number is 24


A. 1. (a) 5 (b) 4 (c) 4 (d) 6 (e) 7 (f) 9 (g) 9 (h) 8 2. (a) 9 (b) 9 (c) 4 (d) 7 (e) 9 (f) 9 (g) 7 (h) 9 (i) 9B. 1. 24 + 4 = 28 2. 34 + 28 = 62 3. 98 – 22 = 78 4. 2 x 7 = 14 5. 24 ÷ 3 = 8C. 1. 100 2. 110 3. 43 4. 38D. 1. 91 2. 44 3. 24 4. 4 5. 73 6. 29 7. 70 8. 9


B. 1. 6, 10, 12, 16,18 2. 66,55,44,33,22,11 3. 62,58,54,50,46,42 4. ABD,ABE,ABF,ABG 5. Dd4, Ee5,Ff6,Gg7 6. 22 7. 44 8. 7C. DD. 1. Sequence 2. pattern 3. number sentenceE. 21, 34, 55, 89. Each number is being

added to the previous number

Topic: Symmetry Page 133

B. 1,2,3,5,8


B. 1. c,f,h,j,k,l 2. 5


A. 1. 4 2. Infinte 3. 6 4. 1 5. 1 6. 2 7. 2 8. 2E. 1. ABCDEHIKMOTUVWX 2. The digits 3,8,1,0


A. 4. (a) 4 (b) 2 (c) 1 (d) 3C. 1. (a) rectangle (b) semicircle (c) square

Topic: Area Page 138

B. 1. house 2. stamp 3. stamp, book, desk, whiteboard, houseC. 1. 10 2. 56 3. 15 4. 64D. 35


A.

1. 13 2. 13 3. 712 4. 7

5. 1 6. 8


B. 1. 16 2. 20 3. 24 4. 10 5. 21 6. 16


A. 1. 64 squares 2. 12 squares 3. 8 squares 4. 4 squares 5. 2 squares 6. 3 squares 7. 39 squares 8. 569 squaresB. 1. 16 2. 25 3. 25 4. 40 5. 25


2. (a) 8 (b) 8 (c) 9 (d) 2 (e) 8C. 16D.


B. 1. 3 2. 8 3. 3 4. 2 5. 3 6. 4 7. 2 8. 7 9. 4 10. 6 11. 8 12. 1 13. 7 14. 7 15. 9 16. 10C. 72 ÷ 9 = 8

D. 1. 24 ÷ 3 = 8 2. 28 ÷ 4 = 7 3. 15 ÷ 5 = 3 4. 18 ÷ 3 = 6


A. 1. 5 2. 5 3. 5 4. 3 5. 7 6. 2 7. 9 8. 7 9. 4 10. 9 11. 9 12. 1 13. 2 14. 5 15. 7B. 1. 5 2. 9 3. 9 4. 8 5. 9 6. (a) 10 (b) 16 7. 8C. 4 insects and 3 spiders


A. 1. 6 2. 2r1 3. 2 4. 2r1 5. 1r2 6. 2r2 7. 4r1 8. 4r1B. 1. 1 2. (a)5 (b) 2 3. 6 4. 9 5. (a) 8 (b) 0 6. (a) 6 (b) No


A. 1. 16 2. 14 3. 16 4. 18 5. 14 6. 17 7. 14 8. 19 9. 19 10. 12B. 1. 27r1 2. 14r2 3. 11r7 4. 12r4 5. 19 6. 14r2 7. 16r1 8. 12r3 9. 16r2 10. 13r2C. 1. 7r1 2. 4r2


B. 1. 7 2. 9 3. 9 4. 6 6. 7 7. 6 8. 9 9. 3 10. 7r1 11. 8r0C. 1. 4 2. 10 3. 6r2 4. 3r2E.

TeamNumber of players on

team

Barracudas 15

Sharks 12

Dolphins 12

Stingrays 18

TeamNumber of players in

each car

Barracudas 3

Sharks 4

Dolphins 3

Stingrays 6


TeamNumber sentence

showing number of cars

Barracudas15 players ÷ 3 people in each car = 5 cars

Sharks 12 ÷ 4 = 3

Dolphins 12 ÷ 3 = 4

Stingrays 18 ÷ 6 = 3

TeamNumber of cars per

team

Barracudas 5

Sharks 3

Dolphins 4

Stingrays 3

The Playground Pages 148 and 149

1. 10 squares 2. green, yellow, blue, white ,red 3. 14, 16, 18, 20, 22, 24, 26, 28, 30,

32, 34, 36 4. 15 5. 200 – 87 = 113 or 87 + 113 = 200 6. seesaw and merry-go-round 7. – 8. 24 9. 6 10. 4:10 11. – 12. 55m 13. 8 hours 14. €64 15. – 16. 1,500, 3000


A. 1. 92 2. False 3. 3 4. vertical 5. 3 r 1 6. 13 7. c 8. 54 squares 9. 300 10. 500m¬B. 1. 48 2. 15

3. 4 4. 510 or 12

5. €1.82 6. c 7. 2 8. 4 9. – 10. 64cmC. 1. 9:40 2. Rectangle straight with yellow spot at

the bottom 3. 2 4. 9 r 2 5. 10cm 6. 4 7. b 8. 31 9. 56 10. €55D. 1. €328 2. d

3. 45 4. 18

5. 85 6. €1.97 7. 3014 8. sphere 9. €1.80 10. 52


B. 1. (a) cylinder (b) cone

(c) cone (d) cube (e) cuboid (f) sphere (g) sphere (h) cuboid (i) cylinder 2. (a) Cylinder 2 Sphere 2 Cube 1C. Cylinder, cuboid, cube, sphere, cone


B. 1. (a) Edge (b) vertex (c) face 2. (a) Edge (b) face 3. (a) Edge (b) face (c) vertexC. 1. (a) cube (b) cone (c) sphere


A.

Shape cube

Does it roll? no

Can you stack it? yes

Does it slide? yes

Does it have any curved sides.

no

Does it have flat faces? yes

Shape cuboid

Does it roll? no


Does it slide? yes


no


Shape cone

Does it roll? yes

Can you stack it? no

Does it slide? yes


yes


Shape sphere

Does it roll? yes


Does it slide? no


yes

Does it have flat faces? no

Shape cylinder

Does it roll? yes


Does it slide? yes


yes


Shape pyramid

Does it roll? no


Does it slide? yes


no


Shape triangular prism

Does it roll? no


Does it slide? yes


no


B.

1. Cuboid 2. pyramid

3. cube 4. cone

5. triangular prism 6. cylinder


A.

Cuboid - 4 rectangles and 2 squares

cylinder – 2 circles and a rectangle

pyramid – one square and 4 triangles

B.

Shape Number of faces

Cube 6

Cuboid 6

Cylinder 3

Cone 2

Triangular prism 5

Pyramid 5

Sphere 1

Shape Number of vertices

Cube 8

Cuboid 8

Cylinder 0

Cone 1

Triangular prism 6

Pyramid 5

Sphere 0

Shape Number of edges

Cube 12

Cuboid 12

Cylinder 2

Cone 1

Triangular prism 9

Pyramid 8

Sphere 0



B. 1. (a) Sphere (b) cone (c) triangular prism 2. edge, vertex, face 3. (a) 5 (b) 8 (c) 5C. 1. cube 2. cone 3. sphereE. (a) Shane (b) Grace (c) Sam (d) Jimmy (e) Steven

Topic: Capacity Page 157

B. Cup of tea, perfume, spray bottle,

milk, wasking up liquidD. 1. (a) 250m¬ (b) 1000m¬ or 1¬ (c) 500m¬ (d) 750m¬


B. 1. 5 2. 10 3. 5 4. 150m¬ 5. 500 6. 2 7. 10 8. 3

9. 5¬ 10. 110

C. Fill the 500m¬ jug, and then pour

from it into the 200m¬ jug until it is full. Then you will be left with 300m¬ in the 500m¬ jug.


A. 1. 250m¬ 2. 12 3. 4 4. 24 5. 12 6. 8B. 1. 3¬ 470m¬ 2. 7¬ 560m¬ 3. 7¬ 550m¬ 4. 9¬ 880m¬ 5. 7¬ 900m¬ 6. 8¬ 000m¬ 7. 10¬ 188m¬ 8. 9¬ 200m¬ 9. 9¬ 913m¬C. 1. 6¬ 690m¬ 2. 11¬ 150 m¬ 3. 8¬ 790 m¬ 4. 7¬ 770 m¬ 5. 8¬ 462 m¬ 6. 5¬ 875 m¬


A. 1. 2¬ 245m¬ 2. 2¬ 190 m¬ 3. 2¬ 150 m¬ 4. 5¬ 363 m¬ 5. 15¬ 797 m¬ 6. 2¬ 091 m¬ 7. 4¬ 308 m¬B.

1. 60¬ 2. 55¬ 3. 112¬ or 1¬ 500m¬

4. 114¬ or 1¬ 250m¬ 5. 660m¬

6. 12C. 1. (a) 80 litres (b) 2 litres (c) 9.5 litres (d) 35 litres (e) Washing up bowl – 6 litres , dish

washer 55 litres

2. 150 litres 3. Turn the tap on and off


B. 1 litres 250m¬ 500m¬ 750m¬C. (a) 10 (b) 1¬ 284m¬

(c) 12 litre bottleD. (a) Capacity (b) container (c) millilitres (d) measureE. Red: 1 Blue: 3 Yellow: 4

Topic: Time 2 Page 162

B. (a) pm (b) am (c) pm (d) pm (e) pm (f) am (g) am (h) pmC. 1. am 2. am 3. am 4. pm 5. pm 6. pm 7. pm


A. 1. 60 2. 30 3. 15B. 1. 65 minutes 2. 90 minutes 3. 85 minutes 4. 100 minutes 5. 115 minutes 6. 80 minutes 7. 130 minutes 8. 140 minutes 9. 75 minutes 10. 90 minutesC. 1. 1hour10 minutes 2. 1 hour 30 minutes 3. 1 hour 40 minutes 4. 1 hour 35 minutes 5. 1 hour 25 minutes 6. 1 hour 50 minutes 7. 2 hours 8. 2 hours 5 minutes 9. 2 hours25 minutes 10. 2 hours 30 minutesD. 1. second 2. minute 3. hour 4. day 5. week 6. month 7. yearE. 1. minutes 2. hours and minutes 3. minutes 4. months 5. days


A. 1. 24 2. 31 3. 4 4. Tuesday 5. Sunday 6. Wednesday 7. 3 8. 4 hours 9. 12:30 10. 3Challenge: 1. Monday 2. Tuesday


A. 1. News Today, 15 minutes 2. Film: Zog’s World 3. Record 4. Kim’s adventures 5. 35 minutes 6. It lasts an hour 7. 5:55 8. 1 hr 10 minutes 9. 1 hour 10. 6:30


B. 1. am 2. 1hr65min 3. pm 4. 1hr25mins 5. pm 6. 2 hrs 25 mins 7. am 8. 60mins 9. 85mins 10. days / weekC. 1. 12 2. 9 o clock 3. 50 minutes 4. 45 minutes 5. MondayD. 1. seconds 2. clock 3. hours 4. twelve 5. leap 6. calendar 7. pm/am

Revision Page 167

A. 1. 400 2. 928 3. 854 4. 457 5. 85 6. 476 7. 173 8. 59 9. 64 10. 42 11. 6 12. 2B. 1. (a) 40 (b) 60 (c) 30 (d) 10 (e) 70 (f) 90 (g) 20 (h) 50 2. (a) 300 (b) 100 (c) 200 (d) 800 (e) 300 (f) 500 (g) 600 (h) 700C. 1. 176 2. 4 3. (a)6 (b) 1 4. 6 5. 36

Revision Page 168

A. 1. (a) 2:40/20 to 3 (b) 7:50/ 10 to 8 (c) 1:25 /25 past 1 (d) 4:05/ 5 past 4 (e) 6:10 / 10 past 6 2. (a) 4 o clock (b) half two

¬


(c) quarter past three (d) twenty five past six (e) ten past eight 3. (a) 70mins (b) 85mins (c) 90mins (d) 109mins 4. (a) 1 hr 5mins (b) 1hr 40 mins (c) 1 hr 55minsB. road - kilometres door – metre and centimetres bucket- litres weights - kilograms glass – millilitres Pencil - centimetresC.

1. (a) 38 (b) 28 or 14 (c) 3

4 (d) 14

(e) 12 2. 6 3. 4 4. 5 5. 7 6. 10 7. 4 8. 9 9. 8 10. rectangle – 14, hexagon – 7

triangle – 6

Revision Page 169

A. 1. 96 2. 75 3. 288 4. 444

5. 9r2 6. 9 r 2 7. 9 r 3 8. 9 r 2B. 1. Cuboid/ rectangle 2. 60 3. pentagon 4. 15 5. 1kg 800g 6. 15kg 800g 7. 20 minutes 8. no, 1 litre 9. 1 hr 30mins 10. bz4 11. 33 12. 72

The All Stars Circus Pages 170 and 171

1. Circle 2. 20 3. 55 minutes 4. 35 5. cuboid 6. 30cm 7. red 8. (a) 5 (b) 35 9. €15.50 10. €7.75 11. 411 12. 199 13. 6 14. 6 15. 10


A.

1. 28 or 14 2. 6

3. 7 4. 14 5. €1.20 6. 1m 79cm 7. 2 8. 60c 9. Friday 10. 300m¬B. 1. 5 2. c 3. 8 4. – 5. 8 r 1 6. 2m 45cm

7. 35 minutes 8. b 9. 15 10. 1060gC. 1. 30 minutes 2. ADW 3. 400m¬ 4. €2.40 5. 6 6. 339

7. 114 ¬ or 1250m¬ 8. 45

9. 90 10. 9D. 1. 4 2. hexagon 3. 8 4. €1.77 5. 0 6. 100 7. cone 8. 50kg 700g 9. 36 squares 10. parallel



Planet Maths 3rd Class Photocopiable Answers

Topic: Place Value Page 105

1. 45, 98, 101, 134, 151, 189, 223, 267, 367, 478, 488, 500

School Rocks! 2. (a) 742,247 (b) 850,058 (c) 630,036 (d) 530,035 (b) 852,258 (f) 641,146 (g) 974,479 (h) 642,246 3. (a) 40 (b) 10 (c) 80 (d) 40 (e) 70 (f) 60 (g) 90 (h) 70 (i) 60 (j) 90 4. (a) 400 (b) 100 (c) 400 (d) 500 (e) 700 (f) 700 (g) 300 (h) 200 (i) 700 (j) 100


1. Red (a) 26 (b) 258 (c) 89 (d) 125 (e) 619 2. Green (a) 50 (b) 724 (c) 87 (d) 133 (e) 949 3. Blue (a) 21 (b) 820 (c) 93 (d) 128 (e) 908 4. White (a) 44 (b) 92 (c) 139 (d) 989 5. Black (a) 40 (b) 74 (c) 136 (d) 834 6. Yellow (a) 42 (b) 98 (c) 161 (d) 872


(a) 12, 22, 10, 25, , 44, 13, 47, 34 (b) 25, 71, 46, 47, , 76, 22, 52, 30 (c) 56, 127, 71, 138, , 83, 82, 94, 12 (d) 39, 48, 9, 136, , 76, 97, 164, 67 (e) 135, 267, 132, 257, , 377, 122,

367, 245 (f) 122, 289, 167, 256, , 378, 134,

345, 211 (g) 245, 632, 387, 456, , 478, 211,

302, 91

Topic: Time Page 108

1. (a) 14 past 2 (b) 20 past 3

(c) 14 to 4 (d) 5 past 11 (e) 25 to 12 (f) 10 past 4

(g) 14 past 7 (h) 5 to 9

2. (a) 25 past 2 (b) 12 past 3

(c) 5 to 4 (d) 14 past 11

(e) 14 to 12 (f) 20 past 4 (g) 25 past 7 (h) 5 past 9

3. (a) 5:20 (b) 7:50 (c) 3:30 (d) 4:25 (e) 8:35 (f) 4:05 (g) 1:45 (h) 8:55

Topic: Time Page 109

1. 2:30 train 2. 6 3. 54 minutes 4. 9:30 5. 20 minutes 6. 2:30 7. The train terminates 8. (a) 1 hour 25 minutes (b) Bus 9. 11:04

Topic: Lines and Angles Page 110

1. (a), (c), (e) 2. (a) 5 (b) 5 (c) 3 (d) 6 (e) 5 (f) 5


1. (a) 6 (b) 4 (c) 24 (d) 48 (e) 19 (f) 29 (g) 16 (h) 14 2. (a) 30, 18 (b) 62, 26 (c) 55, 32 (d) 78, 43 3. (a) 268 (b) 162 (c) 466 (d) 289 (e) 88 (f) 48 (g) 244 (h) 42 (i) 237 (j) 134 (k) 298 (l) 622


1. (a) 243 (b) 514 (c) 311 (d) 199 (e) 392 (f) 102 (g) 89 (h) 422 (i) 403 (j) 311 (k) 555 (l) 133 2. 48, 27, 21 69, 72 26 22, 36, 82 55,122, 67 300, 22, 189 3. (a) 202 (b) 273 (c) 523 (d) 133


1. (a) 12 (b) 34 (c) 2

4 or 12

(d) 12, 24 or 48 (e) 78

(f) 1

2. (a) 28, 38, 78 (b) 24, 34, 78

(c) 14, 58, 68 (d) 14, 48, 1

(e) 14, 48, 34 (f) 12, 68, 1


1. (a) 78 (b) 78 (c) 8

8 (d) 12

(e) 112 (f) 33

8 (g) 58 (h) 1

2

2. 18, 28 (14), 38, 48 (24 or 12), 58, 67 (34), 78

3. (a) 2 (b) 3 (c) 2 (d) 6 (e) 8 (f) 2 (g) 8 (h) 4 (i) 4


1. (a) 270 (b) 200 (c) 70 (d) 560

(e) Yes, by 350 (f) 40s (g) Mr Scully’s class (h) 120


1. 3 2. 4 3. 3 4. 7 5. 7 2. (a) 1, 10, 7, 4, 9, 3, 6, 5 (b) 6, 9, 7, 10, 1, 5, 2, 3 (c) 3, 7, 1, 5, 8, 4, 2, 9 3. (a) ––– (iv) (b) ––– (vi) (c) ––– (v) (d) ––– (iii) (e) ––– (ii) (f) ––– (i)


2. (a) 30 (b) 10 (c) 10 (d) 5 (e) 5 (f) 15 (g) 10c h) €9

Topic: Tenths and Decimals Page 119

1. (a) 310 – 0.3 (b) 7

10 – 0.7

(c) 110 – 0.1 (d) 9

10 – 0.9

(e) 410 – 0.4

2. (a) – (b) 1.6 (c) 3.2 (d) 5.8

(e) 4.4 (f) – (g) 3 710 (h) 2 9

10

(i) 4 110 (j) 6 4

10 3. 0.1, 0.2, 0.3, 0.5, 0.6, 0.7, 0.9 3.1, 3.2, 3.3, 3.4, 3.6, 3.8, 3.9 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9


1. €2.75, €4.57, €2.74, €5.45 2. Ice-cream – 50, 20, 10, 5 Water – 1, 50, 20, 20, 2, 2 Pencil – 20, 20, 5, 2, 2, Newspaper – 1, 50, 10, 2, 1 Biscuits – 2, 1, 50, 20, 5, 2, 1


1. (a) €1.25 (b) Duck and Truck (c) – (d) €11.01 (e) €1, 20c, 20c, 5c, 2c, 2c (f) 13th July


1. 5 12 hours 2. €4.85 3. 95c 4. €6.20 5. 4 6. 5 7. vertically 8. 45 points 9. €115 10. 4:10


Jack in the box Big bad wolf Top secret Trip around the world Swim under water Little sister Tree top


Tuna Misunderstood


1. (a) 7cm (b) 10cm (c) 4cm (d) 3cm (e) 12cm 2. (a) 19cm (b) 18cm (c) 17cm (d) c is the shortest 3. (a) 3m 87cm (b) 7m 88cm (c) 6m 85cm (d) 8m 20cm (e) 7m 34cm (f) 31cm (g) 4m 9cm (h) 2m 90cm (i) 3m 52cm (j) 4m 2cm (k) 7m 52cm (l) 2m 59cm (m) 2m 25cm


2. (a) 24cm (b) 19cm (c) 36cm (d) 12cm (e) 12cm (f) 34cm


1. (a) 40 (b) 30 (c) 24 (d) 25 (e) 20 (f) 50 (g) 15 (h) 16 (i) 48 (j) 35 (k) 36 (l) 6 (m) 100 (n) 64 (o) 28 (p) 80 (q) 32 (r) 8 (s) 0 (t) 14 2. 6, 12, 18, 24, 30, 36, 42, 48, 54, 60


Across 4. Ten times eight = eighty 6. Six times two = twelve 7. Three times five = fifteen 8. Three times ten = thirty 9. Seven times four = twenty eight 11. Four times five = twenty 12. Two times five = ten 13. Seven times two = fourteen 14. eight times eight = sixty-fourDown 1. Six times ten = sixty 2. Two times eight =eighty 3. Seven times ten = seventy 5. Nine times two = eighteen 8. Eight times four = thirty two 10. Five times two (a) 24 (b) 50 (c) 48 (d) 17 (e) 60, 34, 26


1. (a) 6 (b) 40 (c) 40 (d) 16 (e) 16 (f) 56 (g) 45 (h) 32 2. (a) 3 (b) 5 (c) 4 (d) 9 (e) 5 (f) 7 3. (a) 6 (b) 8 (c) 2 (d) 7 (e) 9 (f) 8


1. (a) 35 (b) 80 (c) 48 (d) 36 (e) 18 (f) 56 (g) 40 (h) 20 (i) 32 (j) 15 (k) 24 (l) 50 (m) 10 (n) 2 (o) 80 (p) 30

(q) 45 (r) 70 2. (a) 8 (b) 9 (c) 50¬ (d) 7 (e) 5


1. Impossible, Unlikely, 50:50, Likely and Certain

2. (a)Black (f) Blue 3. impossible, likely, possible, impossible


1. (a) 6 (b) 4 (c) 3 (d) 2 (e) 6 (f) 12 (g) 1 (h) 2 2. 2,6,4,8,3,9,4,10 1,5,9,7,2,3,6,4


1. (a) 10 (b) 3 (c) 9 (d) 8 (e) 5 (f) 7 (g) 2 (h) 1

(i) 6 (j) 15 (k) 15


1. Clockwise from top left (a) 2,3,7,7 (b) 9,3,4,8 (c) 6,7,9,8 (d) 6,2,10,3 (e) 7,8,9,1 (f) 3,3,7,5 (g) 4,6,4,9 (h) 9,7,2,1 (i) 6,8,3,6 (j) 5,8,8,8 (k) 7,1,1,6 2. (a) 217 (b) 168 (c) 36 (d) 45


1. (a) carrot, feather (b) car, coal (c) flour, cereal (d) chocolate, brick (e) coat, chair (f) yogurt, water 2. (a) 550g (b) 150g (c) 375g (d) 1kg (e) 625g 3. (a) 5kg 317g (b) 7kg 420g (c) 10kg 201g (d) 3kg 202g (e) 1kg 593g (f) 5kg 582g


1. (a) 110g (b) 120g (c) 60g (d) 250g (e) 400g (f) 300g (g) 200g (h) 1400g 2. 14g, 40g


1. (a) 8 (b) 9 (c) 10 (d) 10 (e) 16 (f) 16 2. (a) 10 (b) 11 (c) 8 (d) 7

(e) 14 (f) 1012


1. (a) 1 (b) 4 (c) 8 (d) 10 (e) 3 (f) 9 (g) 6 (h) 20 (i) 2 2. (a) 7 (b) 12 (c) 10


1. (a) 18 (b) 14 (c) 16 (d) 19 (e) 42 r1 (f) 18 r1 (g) 12 r2 (h) 12 r3 (i) 38 (j) 84 (k) 5 (l) (m) 6 2. (a) 6,2 (b) 3,30c (c) 2,4 (d) 12 (e) 13 (f) 13 (g) 12 (h) 29 +30, there will be an odd

number of children (i) 20 (j) 20


1. d, d, b, d 2. (a) T (b) F (c) F (d) F (e) T (f) F (g) F (h) F


1. (a) Milk- 1¬ (b) Watering can – 5¬ (c) Paint – 3¬ (d) Bottle of water – 250m¬ (e) egg cup – 50m¬

(f) Jug of water – 112 ¬

(g) Teaspoon – 5m¬ 3. (a) 4¬ 464m¬ (b) 8¬ 489m¬ (c) 7¬ 521m¬ (d) 10¬ 807m¬ (e) 2¬ 220m¬ (f) 2¬ 288m¬ (g) 2¬ 150m¬ (h) 1¬ 706m¬


1. (a) (b) (c) (d) (e) (f) (g) 2. (a) 50m¬ (b) 120m¬ (c) 250m¬ (d) 120m¬ (e) 140m¬ (f) 3¬


1. (a) 10 (b) 30 (c) 15 (d) 10 (e) 15 (f) 10 (g) 20 (h) 35 2. (a) am (b) am (c) pm (d) pm (e) pm (f) pm 3. (a) 90 (b) 75 (c) 120 (d) 146 4. (a) 1hr 10 (b) 1hr 25 (c) 1hr 52 (d) 2hr 5. (a) 25mins (b) Kidz zone (c) Sports Live (d) 1 hr 20


(a) 45mins (b) 25mins (c) 9:00 (d) 2hrs (e) 11:15 (f) 15 (g) 27mins (h) 3:15 (i) 35mins (j) 5:05 (k) 2hours



Planet Maths 4th Class Seasonal Assessment Answers

Assessment Test 1 Hallowe’en Units 1-7

1. 50 2. 106 3. 50 4. 584 5. 2:45 6. – 7. 28 8. A 9. 267 10. 41

11. 58 12. 8

13. 12 14. 30

15. €9 16. 34

17. 169 18. – 19. 3 20. 200

Assessment Test 2 Christmas Part A Units 1-14

1. 1019 2. 56, 135, 147, 267, 314 3. 50 4. D 5. 220 6. 732 7. 48 8. 8 9. 200 10. C 11. 8 12. €2.75 13. – 14. €1.75 15. A 16. 25 17. B 18. 170 19. C 20. 109cm

Assessment Test 2 Christmas Part B Units 1-14

1. 3:15/14 past 3 2. 40 3. 4 4. €5.12 5. 4 6. 147cm 7. 259 8. 40 minutes 9. – 10. B

11. 3 boxes 12. 210, 38, 12, 34, 78, 10

10 13. 71 14. 8:45 15. €, 50c, 20c, 5c 16. 6 17. A 18. D 19. 52 20. –

Assessment Test 3 Easter Units 15-20

1. 8 2. 8kg 391g 3. D 4. Yes 5. 2 6. 6 7. D 8. Unlikely

9. 134 kg or 1kg 750g

10. Any 6 sided shape ( Hexagon) 11. D 12. D 13. 95 14. 30 15. semi-circle 16. €40 17. 225 18. 2 19. C 20. 430g

Assessment Test 4 Summer Units 1-27

1. 70 2. 43,89,156,270,367 3. 60 4. 5:05 5. 379 6. 934 7. 3 8. – 9. 46 10. 14 11. 72 12. 25 to 6 13. 600 14. vertical and horizontal

15. 34 km 16. 3

4 17. B 18. 10 19. €44 20. B 21. 13 22. 8m12cm 23. C 24. 135 25. 6 26. 5 27. €10.78 28. C 29. 3hrs 20mins 30. 707g 31. 24 32. €2.38 33. 1hr 40mins 34. 10 35. A 36. C 37. (a) 15 (b) 14 (c) 17 (d) 9 38. 14 39. B 40. 1m 99cm

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