Year 2 and Year 3 Addition and Subtraction Unit 1 (23158)
Transcript of Year 2 and Year 3 Addition and Subtraction Unit 1 (23158)
Year 2 and Year 3 Addition and Subtraction Unit 1 (23158)
Additional teacher instructions for practice sheets These notes indicate which practice sheets are most appropriate for which groups.
Day 1 Y2 Addition and subtraction Sheet 1Working towards ARE
Day 1 Y2 Addition and subtraction Sheet 2Working at ARE
Day 1 Y2 Addition and subtraction Sheet 3Greater Depth
Day 1 Y3 Balancing the scales Sheet 4Working towards ARE
Day 1 Y3 Making 14 and 15 Sheet 5Working at ARE
Day 1 Y3 Making 16, 17, 18, 19 and 20 Sheet 6Greater Depth
Day 2 Y2 Pairs to 10 and 20 Sheet 1Working towards ARE
Day 2 Y2 Pairs to 20 Sheet 2Working at ARE
Day 2 Y2 Pairs to 20 Sheet 3Greater Depth
Day 2 Y3 Multiples of 5: pairs to 100 Sheet 4Working towards ARE / Working at ARE / Greater DepthWorking towards ARE complete Set A using a 0-100 beaded line (see resources) for reference. Working at ARE complete Set A then Set B. Use landmarked line (see resources) for reference for Set B.Greater Depth complete Set A then Set B.
Day 3 Y2 Pairs to 10 and 20 Sheet 1Working towards ARE
Day 3 Y2 Pairs to 20 Sheet 2Working at ARE
© Hamilton Trust practice_add-sub_23158
Year 2 and Year 3 Addition and Subtraction Unit 1 (23158)
Additional teacher instructions for practice sheets continued These notes indicate which practice sheets are most appropriate for which groups.
Day 3 Y2 Missing numbers Sheet 3 Greater Depth
Day 3 Y3 Missing numbers Sheet 4Working towards ARE
Day 3 Y3 Missing numbers Sheet 5Working at ARE
Day 3 Y3 Missing numbers Sheet 6Greater Depth
Day 4 Y2 Mystery numbers Sheet 1Working towards ARE
Day 4 Y2 Missing numbers Sheet 2Working at ARE / Greater Depth
Day 4 Y3 Triangles Sheet 3Working towards ARE / Working at ARE
Day 4 Y3 Triangles Sheet 4Greater Depth
© Hamilton Trust practice_add-sub_23158
© Hamilton Trust
Title
Body copy here
Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Addition and Subtraction Sheet 1
Complete these bars. Draw new bricks in a different colour. The first one is done for you.
Challenge
practice_add-sub_23158_day1
How many different ways can you make 10 using two numbers?
Make 10
5 + = 10
6 + = 10
7 + = 10
8 + = 10
4 + = 9
6 + = 9
7 + = 9
3 + = 8
6 + = 8
7 + = 8
Make 9
Make 8
5
© Hamilton Trust
© Hamilton Trust
Addition and Subtraction Sheet 2
At the sweet factory. The sweet machine computer has broken down. Tell the computer how many red and blue sweets to put in the bags.Each bag has 10 sweets.Make each bag have a different number of red and blue sweets.
Challenge
practice_add-sub_23158_day1
The sweet factory fills bags with blue, red and yellow sweets. Show four different ways they do this. Remember each bag must have 10 sweets.
6 + 4 = 10 + = 10 + = 10 + = 10 + = 10
+ = 10 + = 10 + = 10 + = 10 + = 10
© Hamilton Trust
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
© Hamilton Trust
Addition and Subtraction Sheet 3
At the sweet factory. The sweet machine computer has broken down. Tell the computer how many red, blue and yellow sweets to put in the bags.Each bag has 10 sweets.Make each bag have a different number of red, blue and yellow sweets.
Challenge
practice_add-sub_23158_day1
In one bag there are red, blue, yellow and green sweets. blue + yellow + red + green = 10 sweetsThe number in each box is different. Can you work it out?
3 + 3 + 4 = 10
© Hamilton Trust
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
© Hamilton Trust
Balance the scalesSheet 4
practice_add-sub_23158_day1
6 + 8 = 5 + 9 + 5 = 6 + 7 + 7 = 4 +
7 + = 8 + 6 10 + 4 = 9 + 8 + = 5 + 9
11 + 3 = + 5 8 + = 12 + 2 13 + 1 = 9 +
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Making 14 and 15Sheet 5
practice_add-sub_23158_day1
8 + = 14 + 0
- 3 = 4 + 10
12 + 2 =
16 - 9 =
+ 4
+ 6
+ 5 = 1 + 13
+ 7 = 15 - 1
9 + 5 = 20 -+ 9 = 7 + 7
6 + 8 = 11 + 10 + = 3 + 11
Making 14
10 + = 13 + 2 12 + 3 = + 6
+ 5 = 2 + 13
+ 12 = 6 + 9
15 + 0 = 20 -
Making 15
+ 14 = 4 + 11
+ 9 = 8 + 7
19 - 4 = 11 +
0 + = 3 + 12
4 + = 16 - 1
Challenge
Use three consecutive single digit numbers and add them, e.g. 1 + 2 + 3. What is the largest possible total? Can you make 18?How many possible totals can you find?
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Making 16, 17, 18, 19 and 20Sheet 6
practice_add-sub_23158_day1
8 + = 14 + 4
+ 8 = 1 + 16
12 + 4 = + 6
+ 10 = 2 + 18
6 + 10 = 11 +
20 - = 14 + 5
- 0 = 8 + 12
5 + 13 = 12 +
0 + = 13 + 7
7 + = 14 + 2
1 + 17 = + 16
+ 14 = 19 - 2
+ 5 = 4 + 13
+ 9 = 19 - 1
6 + 13 = 11 +
20 - = 5 + 11
15 + 5 = + 3
+ 3 = 10 + 9
+ 12 = 6 + 14
15 + 1 = 8 +
+ 12 = 4 + 15
- 2 = 8 + 9
15 + 3 = 10 +
+ 9 = 4 + 11
Challenge
Use three consecutive single digit numbers and add them, e.g. 1 + 2 + 3. What is the largest possible total? Can you make 18?How many possible totals can you find?
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Pairs to 10 and 20 Sheet 1
Make pairs to 10.
Challenge
practice_add-sub_23158_day2
You have number cards 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10. Make pairs to 10, e.g. 6 and 4. How many pairs can you make? Which pair is impossible to make?
9 + = 10
4 + = 10
+ 3 = 10
+ 5 = 10 + 2 = 10 Complete these bars. Draw new bricks in a different colour.The first one is done for you.
Make pairs to 20
15 + = 20
14 + = 20
13 + = 20
17 + = 20
11 + = 20
18 + = 20
7 + = 10
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Title
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Challenge
Working at ARE Working at ARE
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© Hamilton Trust
Pairs to 20 Sheet 2
Challenge
practice_add-sub_23158_day2
You have 21 cards: 0 to 20. You can create pairs of numbers making 20. Write these down. Write the pair you cannot create.
Find the missing numbers.
10 + = 20
8 + = 20
6 + = 20
3 + = 20
+ 5 = 20
+ 9 = 20
+ 13 = 20
+ 14 = 20
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Pairs to 20 Sheet 3
This is a bar model:
Challenge
practice_add-sub_23158_day2
Complete a friend’s bar models and then mark each other’s work. Were there any errors? Can you explain how to correct the errors?
2011 9
Draw your own bar models for a friend to complete. Have one number missing. The total is 20. You must note the answers so you know if your friend got them right!
Example:
Draw at least six different bar models.
2010 ?
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© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
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© Hamilton Trust
© Hamilton Trust
Multiples of 5: pairs to 100Sheet 4
Challenge
practice_add-sub_23158_day2
Find a pair of numbers which total 100 where the digits add to 19. Can you find another? And another? Explain your findings.
Set A
45 + = 100 25 + = 100 15 + = 100 75 + = 100 55 + = 100
95 + = 100 35 + = 100 65 + = 100 85 + = 100 5 + = 100
Set B
100 - = 35 100 - = 85 100 - = 15 100 - = 55 100 - = 25
100 - = 95 100 - = 75 100 - = 45 100 - = 65 100 - = 5
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
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© Hamilton Trust
Pairs to 10 and 20 Sheet 1
Challenge
practice_add-sub_23158_day3
Write 3 challenge questions for a friend to solve. Write them like this:
0 10 20
Write the missing numbers.
10
6
20
10
10
3
20
13
10
9
20
16
10
4
10
8
20
18
20
6
+ 2 = 10 + 13 = 20or
© Hamilton Trust
Title
Body copy here
Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Pairs to 20 Sheet 2
Write the missing number in each bar model.
Challenge (to be done in pairs)
practice_add-sub_23158_day3
How many pairs of numbers can you find that equal 10?Estimate how many pairs of numbers there are that equal 20. Explain why you estimated this number. Now, write all the pairs of numbers that equal 20. How close to your estimate were you?
2011
2013
205
2016
207
2012
209
20
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Missing numbers Sheet 3
Write the pairs of possible missing numbers. How many different pairs can you find for each problem?
Challenge
practice_add-sub_23158_day3
Complete the table below to find the missing numbers.
11
20
??
?
Numbers to add Total5 3 20
4 12 2013 2 207 5 20
8 6 2011 3 205 9 20
13
9
6
7
8
20
20
20
20
20
? ?
?
? ?
??
?
?
© Hamilton Trust
© Hamilton Trust
Title
Body copy here
Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
© Hamilton Trust
Missing numbersSheet 4
practice_add-sub_23158_day3
+ 4 = 6
5 + = 6
2 + = 9
7 + = 8
2 + = 7
3 + = 7
6 + = 9
6 + = 8
+ 2 = 8
5 + = 9
+ 5 = 8
1 + = 7
+ 1 = 6
4 + = 9
1 + = 8
+ 3 = 8
+ 0 = 7
+ 1 = 9
4 + = 7
+ 2 = 7
2 + = 6
+ 7 = 9
+ 7 = 7
8 + = 9
0 + = 8
+ 3 = 6
8 + = 8
6 + = 7
Challenge
Check this sentence: 6 + 2 = twice (6 - 2)The digits 6 and 2 make this work. Find another pair of digits that make a similar sentence. Can you find a third pair?
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Missing numbersSheet 5
practice_add-sub_23158_day3
5 + = 13
9 + = 14
7 + = 16
6 + = 15
8 + = 17
6 + = 14
8 + = 16
+ 9 = 13
+ 6 = 13
+ 9 = 17
+ 7 = 15
14 - 9 =
13 - 4 =
8 + = 15
18 - 9 =
+ 8 = 13
+ 9 = 15
8 + = 14
13 - 7 =
16 - 9 =
5 + = 15
+ 3 = 13
11 + = 14
+ 7 = 17
12 + = 18
+ 12 = 16Challenge
Check this sentence: 6 + 2 = twice (6 - 2)The digits 6 and 2 make this work. Find another pair of digits that make a similar sentence. Can you find a third pair?
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Missing numbersSheet 6
practice_add-sub_23158_day3
5 + = 13
9 + = 14
7 + = 16
6 + = 14
12 + = 18
+ 9 = 13
+ 3 = 13
17 - 7 =
17 - 15 =
+ 13 = 15
16 - 3 =
15 - 3 =
15 - 6 =
17 - 8 =
5 + = 15
11 + = 14
+ 12 = 16
+ 2 = 13
2 + = 14
+ 13 = 13
4 + = 18
+ 14 = 17
16 - 13 =
+ 11 = 15
3 + = 18
14 - 0 =
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Mystery numbers Sheet 1
Challenge
practice_add-sub_23158_day4
Find the mystery numbers.
= 20 + 15
10 + = 20
7 + = 20
= 20 4 +
12 + = 20
+ 7 = 20
= 20 + 11
16 + = 20
+ 2 = 20
= 20 4 +
6 + = 20
13 + = 20
Circle the correct sums below:
3 + 7 = 20 14 + 4 = 20
12 + 8 = 20 13 + 7 = 20
19 + 2 = 20 12 + 18 = 20
15 + 5 = 20
© Hamilton Trust
Title
Body copy here
Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Missing numbers Sheet 2
Challenge
practice_add-sub_23158_day4
Write the possibilities for the missing numbers in each sentence.The first one is done for you.
10 + = 20+
10 10 + 5 5 + 5 or 10 5 or 10 + 4 4 + 6 or 10 6 or 10 + 3 3 + 7 7
10 10 + 2 2 + 8 or 10 8 or 10 + 9 9 + 1 or 10 1 or 10 + 10 10 + 00
+ 15 = 20+
17 + = 20+
12 + = 20+
14 + = 20+
16 + = 20+
11 + = 20+
+ 13 = 20+
9 + = 20+
+ 18 = 20+
All four are odd numbers.What are they?
+ + + = 40
© Hamilton Trust practice_add-sub_23158
TrianglesSheet 3
Challenge
A triangle has 24 in the centre. The numbers at the corners are all 5 or more. What could they be?
In each triangle the numbers at the three corners add to the number in the centres, give three possible answers for each set.
_day4
20
91.
20
9
20
9
25
122.
25
12
25
12
23
83.
23
8
23
8
21
34.
21
3
21
3
© Hamilton Trust practice_add-sub_23158
TrianglesSheet 4
Challenge
A triangle has 38 in the centre. The numbers at the corners are all 5 or more. Find 3 possible sets of numbers that they could be.
In each triangle the numbers at the three corners add to the number in the centres, give three possible answers for each set.
_day4
35
121.
35
12
35
12
35
12
40
112.
40
11
40
11
40
11
45
113.
45
11
45
11
45
11
49
182.
49
18
49
18
49
18
© Hamilton Trust practice_add-sub_23158© Hamilton Trust
Addition and SubtractionAnswers
Day 1 Y2 Addition and Subtraction Sheet 2 6 + 4 = 10 0 + 10 = 10 1 + 9 = 10 2 + 8 = 103 + 7 = 10 4 + 6 = 10 7 + 3 = 10 8 + 2 = 109 + 1 = 10 10 + 0 = 10 There are only enough bags for the children to record nine of the possible ten solutions given here.
Challenge
Day 1 Y2 Addition and Subtraction Sheet 3
In any order:1 + 1 + 8 1 + 2 + 7 1 + 3 + 6 1 + 4 + 52 + 2 + 6 2 + 3 + 5 2 + 4 + 4 3 + 3 + 4
In any colour order: 1 + 2 + 3 + 4
Day 1 Y2 Addition and Subtraction Sheet 1
5 + 5 = 10 3 + 5 = 8 4 + 5 = 96 + 4 = 10 6 + 2 = 8 6 + 3 = 97 + 3 = 10 7 + 1 = 8 7 + 2 = 98 + 2 = 10
Challenge
There are five ways to make 10 using 2 numbers (1 + 9, 2 + 8, 3 + 7, 4 + 6 and 5 + 5), or six ways if you include 0 + 10.
Challenge
Accept answers where children have used 3 numbers to give at total of 10, e.g.1 + 2 + 7 2 + 3 + 5 3 + 4 + 3 4 + 5 + 1 5 + 1 + 4 6 + 2 + 27 + 2 + 1 8 + 1 + 1 and so on...
practice_add-sub_23158_answers
Day 1 Y3 Balancing the scales Sheet 4
6 + 8 = 5 + 9 + 5 = 6 + 7 + 7 = 4 + 9 8 10
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Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
7 + = 8 + 6 10 + 4 = 9 + 8 + = 5 + 9
11 + 3 = + 5 8 + = 12 + 2 13 + 1 = 9 +
8 + = 14 + 0
- 3 = 4 + 10
12 + 2 =
16 - 9 =
+ 4
+ 6
+ 5 = 1 + 13
+ 7 = 15 - 1
9 + 5 = 20 -+ 9 = 7 + 7
6 + 8 = 11 + 10 + = 3 + 11
Making 14
10 + = 13 + 2 12 + 3 = + 6
+ 5 = 2 + 13
+ 12 = 6 + 9
15 + 0 = 20 -
Making 15
+ 14 = 4 + 11
+ 9 = 8 + 7
19 - 4 = 11 +
0 + = 3 + 12
4 + = 16 - 1
6
9
1
10
14
6
17
5
43
95
3
10
4
6
5
1
15
11
8 + = 14 + 4
+ 8 = 1 + 16
12 + 4 = + 6
+ 10 = 2 + 18
6 + 10 = 11 +
20 - = 14 + 5
- 0 = 8 + 12
5 + 13 = 12 +
0 + = 13 + 7
7 + = 14 + 2
1 + 17 = + 16
+ 14 = 19 - 2
+ 5 = 4 + 13
+ 9 = 19 - 1
6 + 13 = 11 +
20 - = 5 + 11
15 + 5 = + 3
+ 3 = 10 + 9
+ 12 = 6 + 14
15 + 1 = 8 +
+ 12 = 4 + 15
- 2 = 8 + 9
15 + 3 = 10 +
+ 9 = 4 + 11
10 12
9
4
8
10
9
10
175
16
8
1
20
86
7
19
8
6
20
9
2
3
Day 1 Y3 Balancing the scales Sheet 4 continued
Day 1 Y3 Making 14 and 15 Sheet 5 Day 1 Y3 Making 16, 17, 18, 19 and 20 Sheet 6
7 5 6
6 59
Challenge
Largest possible total is 24 (7 + 8 + 9).5 + 6 + 7 = 18There are 7 possible totals (1 + 2 + 3, 2 + 3 + 4, 3 + 4 + 5, 4 + 5 + 6, 5 + 6 + 7, 6 + 7 + 8 and 7 + 8 + 9).
Addition and SubtractionAnswers
practice_add-sub_23158_answers
© Hamilton Trust
Title
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Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Day 2 Y2 Pairs to 10 and 20 Sheet 1
0 + 20 1 + 192 +183 + 174 + 16
Day 2 Y2 Pairs to 20 Sheet 2
Day 2 Pairs to 20 Sheet 3
5 + 156 + 147 + 138 + 129 + 11
You cannot make the pair 10 + 10, because you only have one 10 card.
0 + 10 1 + 92 + 8 6 + 43 + 7
Children may also present the numbers in a different order e.g 10 + 0.
You cannot make the pair 5 + 5, because you only have one 5 card.
Challenge
Challenge
Bar models with numbers making 20. These could show any of the following pairs:0, 20 1, 19 2, 18 3, 17 4, 16 5, 15 6, 14 7, 13 8, 12 9, 11 10, 10
practice_add-sub_23158_answers
Addition and SubtractionAnswers
9 + 1 = 10 7 + 3 = 10 7 + 3 = 10 4 + 6 = 10 5 + 5 = 10 8 + 2 = 10
15 + 5 = 2014 + 6 = 20 13 + 7 = 20 17 + 3 = 2011 + 9 = 20 18 + 2 = 20
10 + 10 = 208 + 12 = 20 6 + 14 = 20 3 + 17 = 2015 + 5 = 20 11 + 9 = 206 + 14= 20 7 + 13= 20
© Hamilton Trust
Title
Body copy here
Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Day 2 Y3 Multiples of 5: pairs to 100 Sheet 4
55
15 + 85 = 100 The digits add to 19 because the Tens digits have to make 25 + 75 = 100 9 tens and the Ones digits need to total 10, and 35 + 65 = 100 9 + 10 = 1945 + 55 = 100
Challenge
Set A
45 + = 100 25 + = 100 15 + = 100 75 + = 100 55 + = 100
95 + = 100 35 + = 100 65 + = 100 85 + = 100 5 + = 100
Set B
100 - = 35 100 - = 85 100 - = 15 100 - = 55 100 - = 25
100 - = 95 100 - = 75 100 - = 45 100 - = 65 100 - = 5
75 85
7585 45
35
1535
25
65
15
55 95
95
45
25
5
65
5
Day 3 Y2 Pairs to 10 and 20 Sheet 1
106
2010
103
2013
109
2016
104
108
2018
206
10
4
14
7
4
7
1
6
2 2
practice_add-sub_23158_answers
Addition and SubtractionAnswers
© Hamilton Trust
Title
Body copy here
Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
20
11
20
13
20
5
20
16
20
7
20
10
20
9
20
9 7
15
10
4
13
11
Day 3 Y2 Pairs to 20 Sheet 2
128
practice_add-sub_23158_answers
Addition and SubtractionAnswers
Pairs of numbers that equal 10 : 0 + 10 1 + 9 2 + 8 3 + 7 4 + 6There are twice as many. As 20 is double 10 there are double number of pairs.Pairs of numbers that equal 20:0 + 20 1 + 19 2 + 18 3 + 17 4 + 16 5 + 15
Challenge
Day 3 Y2 Missing numbers Sheet 3
Bar models - accept any pairs of numbers making the totals needed to add to get to 20.
Challenge
Complete the table below to find the missing numbers.
Numbers to add Total5 12 3 20
4 4 12 20
13 2 5 20
7 8 5 20
6 8 6 20
11 3 6 20
5 6 9 20
© Hamilton Trust
Title
Body copy here
Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Day 3 Y3 Missing Numbers Sheet 4
+ 4 = 6
5 + = 6
2 + = 9
7 + = 8
2 + = 7
3 + = 7
6 + = 9
6 + = 8
+ 2 = 8
5 + = 9
+ 5 = 8
1 + = 7
+ 1 = 6
4 + = 9
1 + = 8
+ 3 = 8
+ 0 = 7
+ 1 = 9
4 + = 7
+ 2 = 7
2 + = 6
+ 7 = 9
+ 7 = 7
8 + = 9
0 + = 8
+ 3 = 6
8 + = 8
6 + = 7
1
1
0
2
3
8
1
3
5
8
77
1
5
7
4
5
3
4
2
0
5
5
2
6
3
4
6
Challenge
3 + 1 = twice (3 - 1) and 9 + 3 = twice (9 - 3)
Addition and SubtractionAnswers
5 + = 13
9 + = 14
7 + = 16
6 + = 15
8 + = 17
6 + = 14
+ 9 = 13
+ 6 = 13
+ 9 = 17
+ 7 = 15
8 + = 15
18 - 9 =
+ 8 = 13
+ 9 = 15
8 + = 14
13 - 7 =
16 - 9 =
5 + = 15
+ 3 = 13
+ 7 = 17
Day 3 Y3 Missing Numbers Sheet 5
5
9
8
7
5
6
6
6
9
4
9
8
8
8 10
10
10
7
7
9
practice_add-sub_23158_answers
© Hamilton Trust
Title
Body copy here
Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Challenge
3 + 1 = twice (3 - 1) and 9 + 3 = twice (9 - 3)
Addition and SubtractionAnswers
Day 3 Y3 Missing Numbers Sheet 5 continued
practice_add-sub_23158_answers
8 + = 16
14 - 9 =
13 - 4 =
11 + = 14
12 + = 18
+ 12 = 16
5
9 4
8 6
3
5 + = 13
9 + = 14
7 + = 16
6 + = 14
12 + = 18
+ 9 = 13
+ 3 = 13
17 - 7 =
17 - 15 =
+ 13 = 15
16 - 3 =
15 - 3 =
15 - 6 =
17 - 8 =
5 + = 15
= 14
+ 12 = 16
+ 2 = 13
2 + = 14
+ 13 = 13
4 + = 18
+ 14 = 17
16 - 13 =
+ 11 = 15
3 + = 18
14 - 0 =
11
5 2
2
8
9
129
0
134
9
14
3
128
10
4
10
10
15
14
3
6
4
311+
Day 3 Y3 Missing Numbers Sheet 6
© Hamilton Trust
Title
Body copy here
Challenge
Working at ARE Working at ARE
Challenge copy here...
© Hamilton Trust
Day 4 Y3 Mystery numbers Sheet 1
= 20 + 15
10 + = 20
7 + = 20
= 20 4 +
12 + = 20
+ 7 = 20
= 20 + 11
16 + = 20
+ 2 = 20
= 20 4 +
6 + = 20
13 + = 20
14
18
16
13
13
10
16
5
4
7
8
9
Day 4 Y2 Missing numbers Sheet 2
+ 15 = 20+
17 + = 20+
12 + = 20+
14 + = 20+
16 + = 20+
11 + = 20+
0 5
0 3
0 8
0 6
0 4
0 9
1 + 4 2 + 3
1 + 2
1 + 7 2 + 6 3 + 5 4 + 4
1 + 3 2 + 2
1 + 5 2 + 4 3 + 3
1 + 8 2 + 7 3 + 6 4 + 5
practice_add-sub_23158_answers
Addition and SubtractionAnswers
Challenge
Circle the correct sums below:
3 + 7 = 20 14 + 4 = 20
12 + 8 = 20 13 + 7 = 20
19 + 2 = 20 12 + 18 = 20
15 + 5 = 20
+ 13 = 20+ 0 7 1 + 6 2 + 5 3 + 4
© Hamilton Trust practice_add-sub_23158
Challenge
A triangle has 24 in the centre. The numbers at the corner are all 5 or more. What could they be?5, 6, 13 5, 7, 12 5, 8, 11 5, 9, 106, 7, 11 6, 8, 10 6, 9, 97, 8, 9
Day 4 Y3 Triangles Sheet 3
1. Any pair that adds to 11. 2. Any pair that adds to 13. 3. Any pair that adds to 15. 4. Any pair that adds to 18.
Challenge
A triangle has 38 in the centre. The numbers at the corner are all 5 or more. Find 3 possible sets of numbers that they could be.Answers could inlcude the following:5, 6, 27 5, 7, 26 5, 8, 25 5, 9, 24 5, 10, 23 5, 11, 225, 12, 21 5, 13, 20 5, 14, 19 5, 15, 18 5, 16, 176, 7, 25 6, 8, 24 6, 9, 23 6, 10, 22 6, 11, 21 6, 12, 206, 13, 19 6, 14, 18 6, 15, 17 6,16, 167, 8, 23, 7, 9, 22 7, 10, 21 7, 11, 20 7, 12, 19 7, 13, 18 7, 14, 17 7, 15, 168, 9, 21 8, 10, 20 8, 11, 19 8, 12, 18 8, 13, 17 8, 14, 168, 15, 15 and so on.
Day 4 Y3 Triangles Sheet 4
1. Any pair that adds to 23. 2. Any pair that adds to 18. 3. Any pair that adds to 34. 4. Any pair that adds to 31.
_answers
Addition and SubtractionAnswers
9 + = 20+
+ 18 = 20+
110
20 1 + 1
1 + 10 2 + 9 3 + 8 4 + 75 + 6
Challenge
+ + + = 40 All four are odd numbers.What are they?
Accept any combination of four numbers which total 40.
Day 4 Y2 Missing numbers Sheet 2 continued