101022 33 44 55 66 77 88999955

55

Chapter 2

24 seeds

42 seeds

47 seeds 38

seeds

52 seedsRadhika

Gauri

Sunil

Indra

Vicky

Radhika, Gauri, Vicky, Indra and Sunil were collecting Imli (tamarind) seeds.

✤ _________ collected the most seeds.✤ Sunil will collect ________ more seeds to be equal to Vicky.✤ If Radhika gets 6 more seeds, she will have ___________.✤ How many children have more than 40 seeds? _________________________✤ ________needs 3 more seeds to have 50.✤ Sunil has 2 seeds less than 40 and _______has 2 seeds more than 40.

Can you tell the total number of seeds collected by Gauri and Indra ? That is 47 + 52 =99. 99 is the highest two digit number.

When we add 1 to 99 we get 100. 100 is the smallest three digit number. After 100 comes 101, 102, 103,104 ………and so on.

102 104 105

107 109 111

One hundred fifty

Four hundred sixty

Eight hundred eighty three

Six hundred ninety

One hundred ninety nine

Eight hundred twenty

✤

✤

✤

✤

✤

✤

Find these numbers in the above chart.

One hundred fortyTwo hundred twoTwo hundred sixty-oneEight hundred300 + 70 + 4600 + 50 + 65 + 50 + 100

Fifty-fourSixtyOne hundred ninety-fiveFive hundred fifty-five600 + 40 + 2100 + 70 + 9800 + 10

Four hundred forty-fiveSixteenOne hundred fifty-nineSix hundred eighty-five600 + 90 + 970 + 41 + 90 + 80

The children of class III, Gayatri and Shyam are jumping during their PT period.

100 102 104 106 108 110 112

262260258256254252250

Gayatri

Shyam

Gayatri

Shyam

Gayatri is jumping 2 steps forward

Shyam is jumping 2 steps backward

Ann

Abhi

Ann and Abhi can jump 10 steps.

Ann is jumping 10 steps forward

Abhi is jumping 10 steps backward

100 110 120 130 140 150 160

140 150 160 170 180 190 200

Ann

Abhi

Continue the pattern:

550, 560, 570 ____,___,____ ,_____,____ .

910, 920, 930, 940 ___,___,___,___,____ .

209, 207, 205 ___,___,___,___,____ .

401, 402, 403 ___,___,___,___,___ .

Hari, the shopkeeper collects money only in notes , notes and

coins. Now find out how people will pay him for what they have taken.

420

143

55

a) I come between 40 and 50 and there is a 5 in my name.

b) I have 9 in my name and am very close to 90. C ) If you hit a 4 after me, you score a century.

d) I am equal to 10 notes of 10. e) I am century + half century

f) I am exactly in between 77 and 97.

(a)

(b)

(c)

(d)

(e)

(f)

Sidhu is counting stars with the help of cards. When he counted one star he kept one card in his pocket. When he had 10 cards he changed it

with this card . When he had 10 cards like this , he changed with

a card.

1 1

10 10

100

13

24

221

306

1 11 1 1 1

1

1 111

111

1010

1010

10

100100

100100

100

Now I will show you a few collection of cards. And you have to tell me the number of stars counted in each case.

1

100100

100100100

100100

100100

1010101010

1010

101010

1 1

111

1 1

1

1 1

33

304

422

252

FA ACTIVITIES

1.Quiz on formation of greatest and smallest numbers using 3 given digits.

2.Quiz – even or odd numbers.

3.Group even or odd numbers between two given numbers.

4.Quiz on place value of a digit in a number. Eg; Place value of 3 in 739.

5.Time bound quiz - show number using place value cards.

WORK SHEET No.1 Competency: Formation of Numbers 1.Fill in the missing numerals

Competency: Understanding Basic Concepts 1. Write the number names for the following a) 199 ________________________________________________ b) 213 ________________________________________________ c) 341 ________________________________________________ d) 605 ________________________________________________ Competency: Ability to compute 1. Counting by 2’s write the numbers starting from:

2. Counting by 5’s write the numbers starting from:

200 205478 483765 770

322414120

634852421

Competency: Problem Solving Ability. 1. Who am I ? a)My Ones digit is four. My Tens digit is 3 more than my Ones digit. I am the number ___________________. b) My Ones digit is five. My Tens digit is 2 more than my Ones digit. My Hundreds digit is 1 less than my Ones digit. I am the number ___________________ .

WORK SHEET No.2

2.How many triangles can you find in this figure?

Prepared byMrs. Sujatha SubhashMrs. Sheena.T.K.Kendriya vidyalaya, Kalpetta