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

Question 1.

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

Answer:

Question 2.

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

a.

Answer:

b.

Answer:

c.

Answer:

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:

+

Activity 1:

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

Answer:

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

Answer:

Activity 2:

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

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

Activity 3:

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

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.

Activity 4:

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

Question 1.

Answer:

Question 2.

Answer:

Place value of a numeral in the given number.

write the place value of the underlined digit in the given number.

Answer:

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

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Expand the given numbers into ones tens and hundreds.

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

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

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

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

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Activity 5 (Text Book Page No. 15):

Answer:

Activity 6 (Text Book Page No. 16):

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

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

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:

<

- 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.

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

Practice (Text Book Page No. 21):

Question 1.

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

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

2. Complete the following number sequence.

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

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

Question 4.

Write the number names.

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

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.

Question 6.

Write the place value for the bubbled digits.

a.

Answer:

Hundreds

b.

Answer:

Ones

c.

Answer:

Tens

Question 7.

Write down the odd and even numbers seperately.

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:

<

Question 9.

Write the numbers in ascending and descending order.

a. Ascending order:

Answer:

301, 308, 323, 326, 340, 356, 365, 399

b. Descending order:

Answer:

399, 365, 356, 340, 326, 323, 308, 301

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:

Answer:

Try this (Text Book Page No. 24):

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

34 + 452 + 3 = _____

Answer:

489

Try this (Text Book Page No. 25):

Add the following numbers.

a.

Answer:

b.

Answer:

c.

Answer:

d. 921 + 20 + 61 = ___

Answer:

1002

e. 28 + 195 + 6 = ___

Answer:

229

Try this (Text Book Page No. 26):

Subtraction:

Answer:

Try this (Text Book Page No. 27):

Subtract the following numbers.

a.

Answer:

b.

Answer:

c.

Answer:

Try this (Text Book Page No. 28):

a.

Answer:

b.

Answer:

c.

Answer:

Daily life situation involving addition and subtraction.

Question 1.

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

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.

Answer:

The first day saving = 125

The second day saving = 200

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

Savings amount = 350

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.

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.

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?

Practice (Text Book Page No. 31):

Frame questions for the given addition and subtraction facts.

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? |

Practice (Text Book Page No. 33):

Question 1.

Find the sum and difference of the following.

a.

Answer:

b.

Answer:

c.

Answer:

d.

Answer:

e.

Answer:

f.

Answer:

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

Question 3.

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

a.

Answer:

b.

Answer:

Question 4.

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

a.

Answer:

b.

Answer: