Samacheer Kalvi 3rd Standard Maths Book Solutions Term 1 Chapter 2 Numbers

Question 1.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 1

Look at the picture and answer the following. Flowers number and number name of the flowers. (Text Book Page No. 17):

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 2

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 3

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 2.
Fill in the blanks in each of the figures with missing numbers (Text Book Page No. 18):

a.Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 4

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 5

b. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 6

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 7

c. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 8

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 9

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 3.
Complete the given facts by placing + for addition and – for subtraction. (Text Book Page No. 18)

a. 9 _ 3 = 12
Answer:
+

b. 80 _ 11 = 91
Answer:
+

c. 56 _ 21 = 35
Answer:

d. 92 _ 20 = 72
Answer:

e. 12 _ 3 = 9
Answer:

f. 75 _ 17 = 92
Answer:
+

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Activity 1:
Read and write all three digit numbers and number names (Text Book Page No. 11):

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 10

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 11

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 12

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 13

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Read and write the numbers from 101 to 200 (Text Book Page No. 12):

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 14

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 15

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Activity 2:

Write the numerals for the given number names (Text Book Page No. 13):

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 16

Question 1.
Five hundred and thirty five.
Answer:
535

Question 2.
One hundred and seven
Answer:
107

Question 3.
one hundred and twenty eight.
Answer:
128

Question 4.
Six hundred.
Answer:
600

Question 5.
Nine hundred and five.
Answer:
905

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Activity 3:

Write the number names for the following Numerals (Text Book Page No. 13):

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 17

Question 1.
150
Answer:
One hundred and fifty.

Question 2.
225
Answer:
Two hundred and twenty five

Question 3.
306
Answer:
Three hundred and six.

Question 4.
535
Answer:
Five hundred and thirty five.

Question 5.
907
Answer:
Nine hundred and seven

Question 6.
992
Answer:
Nine hundred and ninety two.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Activity 4:

Form three digit numbers using each of the given numbers only once.

Question 1.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 18

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 19

Question 2.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 20

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 21

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Place value of a numeral in the given number.
write the place value of the underlined digit in the given number.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 22

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 23

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Find the numbers represented in the abacus by writing their place value.

Question 1.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 25

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 24

Question 2.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 26

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 27

Question 3.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 28

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 29

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Expand the given numbers into ones tens and hundreds.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 30

Question 1.
246
Answer:
200 + 40 + 6

Question 2.
570
Answer:
500 + 70 + 0

Question 3.
637
Answer:
600 + 30 + 7

Question 4.
603
Answer:
600 + 0 + 3

Question 5.
989
Answer:
900 + 80 + 9

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Write the simplified form of the number of the given expansions.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 31

Question 1.
300 + 90 + 8
Answer:
398

Question 2.
200 + 50 + 6
Answer:
256

Question 3.
900 + 80 + 5
Answer:
985

Question 4.
500 + 50 + 7
Answer:
557

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Complete the following by skip counting in 5s ,10s and 100s.

Question 1.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 32

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 33

Question 2.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 34

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 35

Question 3.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 36

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 37

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Activity 5 (Text Book Page No. 15):

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 38

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 39

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Activity 6 (Text Book Page No. 16):

Colour the balloons with odd number by yellow and even number by red.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 40

In number sequence, after every odd number there is an even number. Similarly after every even number there is an odd number.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Try this (Text Book Page No. 19):

Put <, > and = in the boxes provided.

Question 1.
103 ___ 438
Answer:
<

Question 2.
250 ___ 069
Answer:
>

Question 3.
408 ___ 308
Answer:
>

Question 4.
710 ___ 710
Answer:
=

Question 5.
614 ___ 618
Answer:
<

Question 6.
719 ___ 917
Answer:
<

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

  • The greatest three digit number is 999.
  • The smallest three digit number is 100.

Try this (Text Book Page No. 20):

Question 1.
Write the even numbers between 245 and 255 in descending order.
Answer:
254, 252, 250, 248, 246.

Try this (Text Book Page No. 20):

Question 1.
Arrange the following numbers in ascending order.

a. 55, 63, 40, 8
Answer:
8, 40, 55, 63

b. 50, 405, 109, 600
Answer:
50, 109, 405, 600

c. 217, 201, 215, 219
Answer:
201, 215, 217, 219

d. 785, 757, 718, 781
Answer:
718, 757, 781, 785.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 2.
Arrange the following numbers in descending order.

a. 212, 503, 369, 60
Answer:
503, 369, 212, 60

b. 323, 303, 332, 33
Answer:
332, 323, 303, 33

c. 051, 100, 810, 167
Answer:
810, 167, 100, 051

d. 205, 210, 290, 300
Answer:
300, 290, 210, 205

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Practice (Text Book Page No. 21):

Question 1.
Form greatest and smallest numbers using the given digits (without repetition of digits)

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 41

Answer:
a. 5, 0, 9
Answer:
Greatest number = 950
Smallest number = 509

b. 6, 3, 7
Answer:
Greatest number = 763
Smallest number = 367

c. 4, 0, 1
Answer:
Greatest number = 410
Smallest number = 104

d. 9, 9, 0
Answer:
Greatest number = 990
Smallest number = 909

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

2. Complete the following number sequence.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 42

Question 1.
111, 222, 333, 444, ___, ___, ___
Answer:
111, 222, 333, 444, 555, 666

Question 2.
150, 155, 160, 165, ___, ___, ___
Answer:
150, 155, 160, 165, 170, 175, 180

Question 3.
210, 310, 410, 510, ___, ___, ___
Answer:
210, 310, 410, 510, 610, 710, 810

Question 4.
333, 433, 533, 633, ___, ___, ___
Answer:
333, 433, 533, 633, 733, 833, 933

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 3.
Find the numbers.

a. 4 Hundreds; 5 Tens; 0 ones
Answer:
450

b. 3 Hundreds; 0 Tens; 1 Ones
Answer:
301

c. 5 Hundreds; 8 Tens; 9 Ones
Answer:
589

d. 8 Hundreds; 0 Tens; 5 Ones
Answer:
805

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 4.
Write the number names.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 42

a. 156
Answer:
One hundred fifty six.

b. 340
Answer:
Three hundred and forty.

c. 408
Answer:
Four hundred and eight

d. 696
Answer:
Six hundred ninety six

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 5.
Fill in the blanks.

a. 405 has ___ Hundred ___ Tens ___ Ones
Answer:
405 has 4 Hundred 0 Tens 5 Ones

b. 547 has ___ Hundred ___ Tens ___ Ones
Answer:
547 has 5 Hundred 4 Tens 7 Ones

c. 680 has ___ Hundred ___ Tens ___ Ones
Answer:
680 has 6 Hundred 8 Tens 0 Ones.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 6.
Write the place value for the bubbled digits.

a. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 43
Answer:
Hundreds

b. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 44
Answer:
Ones

c. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 45
Answer:
Tens

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 7.
Write down the odd and even numbers seperately.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 46

a. Odd numbers
Answer:
123, 333, 535

b. Even numbers
Answer:
422, 588, 246

Question 8.
Write <, > and = in the box.

a. 105 ___ 150
Answer:
<

b. 419 ___ 547
Answer:
<

c. 394 ___ 387
Answer:
>

d. 761 ___ 683
Answer:
>

e. 660 ___ 660
Answer:
=

f. 983 ___ 990
Answer:
<

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 9.
Write the numbers in ascending and descending order.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 47

a. Ascending order:
Answer:
301, 308, 323, 326, 340, 356, 365, 399

b. Descending order:
Answer:
399, 365, 356, 340, 326, 323, 308, 301

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 10.
Using the digits 6, 8 and 5 only once write the greatest and smallest 3 digit number.
Answer:
Greatest number: 865
Smallest number: 568

Addition:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 48

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 49

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Try this (Text Book Page No. 24):

Question 1.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 50

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 51

Question 2.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 52

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 53

Question 3.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 54

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 55

Question 4.
34 + 452 + 3 = _____
Answer:
489

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Try this (Text Book Page No. 25):

Add the following numbers.

a. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 56

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 57

b. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 58

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 59

c. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 60

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 61

d. 921 + 20 + 61 = ___
Answer:
1002

e. 28 + 195 + 6 = ___
Answer:
229

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Try this (Text Book Page No. 26):

Subtraction:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 62

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 63

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Try this (Text Book Page No. 27):

Subtract the following numbers.

a. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 64

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 65

b. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 66

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 67

c. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 68

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 69

Try this (Text Book Page No. 28):

a. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 70

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 71

b. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 72

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 73

c. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 74

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 75

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Daily life situation involving addition and subtraction.

Question 1.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 76

452 Mangoes are grown in farm A and 349 in farm B. Find the total number of mangoes grown in both farms.
Mangoes in farm A = 452
Mangoes in farm B = 349

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 77

Total number of mangoes = 801

Question 2.
Amuthan saved rupees 125 on the first day and rupees 200 in the second day. Find the total amount saved by him in two days.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 78

Answer:
The first day saving = 125
The second day saving = 200

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 79

Total saving = 325

Question 3.
Kumar earned rupees 800 ¡n a day and spent rupees 450. Find the amount saved by him.
Answer:
His one day income = 800
Amount spent = 450

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 80

Savings amount = 350

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Try this (Text Book Page No. 30):

Question 1.
There were 10 egg trays each with 10 eggs in Volavans egg shop. He sold eggs ¡n 3 trays and found that eggs in 2 trays were roften. Find the number of eggs reamining in valavan’s shop.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 81

Answer:
Total number of eggs in valavans shop = 100
Number of eggs sold + number of eggs rotten = 30 + 20 = 50
Number of eggs remaining in the shop = 50.

Question 2.
Frame questions for addition and subtraction for the picture below.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 82

One is done for you.
1. Rani Chose 2 shirts from the hanger and 3 shirts from the rack Find the total number of shirts chosen by him.
Answer:
2. Revathi chose 8 chudithars. but her mother paid only for chudithars. How many chudithars Revathi left in the shop?

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Practice (Text Book Page No. 31):

Frame questions for the given addition and subtraction facts.

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 83

Answer:

i. 118 + 212 = ? Uma has 118 blue chalk pieces and 212 white chalk pieces. How many chalk pieces does she have in total
ii. 717-515 = ? Ramesh’s father gave him 717 and he gave 515 to her sister. How many rupees does he have now?
iii. 200 + 300 = ? Suresh’s mother asked him what he will get when 200 is added to 300
iv. 243 – 169 = ? Savitha has 169 bananas and 243 custard apples. How many more custard apples does she have in total?

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Practice (Text Book Page No. 33):

Question 1.
Find the sum and difference of the following.

a. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 84

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 85

b. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 86

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 87

c. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 88

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 89

d. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 90

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 91

e. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 92

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 93

f. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 94

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 95

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 2.
Round off to the nearest 10.

a. 19
Answer:
19 ≈ 20

b. 25
Answer:
25 ≈ 30

c. 21
Answer:
21 ≈ 20

d. 47
Answer:
47 ≈ 50

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers

Question 3.
Estimate the sum to the nearest ten and also find the actual sum.

a. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 96

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 97

b. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 98

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 99

Question 4.
Estimate the difference to the nearest ten and also find the actual difference.

a. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 100

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 101

b. Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 102

Answer:

Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 2 Numbers 103

Samacheer Kalvi 3rd Standard Maths Guide