Tag: Numbers

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

Equal sharing and repeated subtraction (Text Book Page No. 11):

Question 1.
Suppose Kabilan has to share the mangoes among 15 of his friends. How many mangoes would each of them get? How Many steps would he require to share the mangoes among them.

Complete the number line.

Answer:

Number of steps = 2

Complete the number line – 15

Repeated subtraction statement 30 -15 -15 = 0
Kabilan shared 30 mangoes among 15 of his friends in 2 steps.
Each friend got 2 mangoes.

Complete the table. (Text Book Page No. 12):

Answer:

Equal Sharing (Text Book Page No. 13):

Question 2.
Rangamma has 36 coconuts and arranges them into group of 4 each. Find the number of groups.

The number line can be drawn as

The number statement is ___________.
Answer:

The number line can be drawn as

The number statement is 36 ÷ 4 = 9.

Question 3.
Rangamma has got 48 gooseberries and arranges them into group of 6 each. Find the number of groups.

The number line can be drawn as

Answer:

The number can be drawn as

The number statement is 48 ÷ 6 = 8.

Question 4.
Find few other ways that Rangamma can group these 48 gooseberries and write the number statements.

a.
Answer:
48 ÷ 2 = 24

b.
Answer:
48 ÷ 3 = 16

c.
Answer:
48 ÷ 4 = 12

d.
Answer:
48 ÷ 6 = 8

e.
Answer:
48 ÷ 8 = 6

f.
Answer:
48 ÷ 12 = 4

g.
Answer:
48 ÷ 16 = 3

h.
Answer:
48 ÷ 24 = 2

i.
Answer:
48 ÷ 1 = 48

Exercise (Text Book Page No. 14):

a. Divide 8 Balls into a group of 2 Balls each.

Answer:

8 ÷ 2 = 4

b. Divide 15 oranges into a group of 3 each.

Answer:

15 ÷ 3 = 5

c. Divide 20 cups into groups of 5 each.

Answer:

20 ÷ 5 = 4

Multiplication and Division (Text Book Page No. 17):

Question 1.
Construct the division fact for the multiplication tables 3.

Answer:

Question 2.
Construct the division fact for the multiplication tables 4.

Answer:

Question 3.
Construct the division fact for the multiplication tables 5.

Answer:

Question 4.
Construct the division fact for the multiplication tables 10.

Answer:

Exercise (Text Book Page No. 19):

Divide and find the quotient.

Question 1.
20 ÷ 4 =
Answer:
4 × 1 = 4
4 × 2 = 8
4 × 3 = 12
4 × 4 = 16
4 × 5 = 20

20 ÷ 4 = 5

Question 2.
10 ÷ 2 =
Answer:
2 × 1 = 2
2 × 2 = 4
2 × 3 = 6
2 × 4 = 8
2 × 5 = 10

10 ÷ 2 = 5

Question 3.
24 ÷ 3 =
Answer:
3 × 1 = 3
3 × 2 = 6
3 × 3 =9
3 × 4 = 12
3 × 5 = 15
3 × 6 = 18
3 × 7 = 21
3 × 8 = 24

24 ÷ 3 = 8

Question 4.
10 ÷ 10 =
Answer:
10 × 1 =10

10 ÷ 10 = 1

Question 5.
30 ÷ 5 =
Answer:
5 × 1 = 5
5 × 2 = 10
5 × 3 = 15
5 × 4 = 20
5 × 5 = 25
5 × 6 = 30

30 ÷ 5 = 6

Question 6.
14 ÷ 2 =
Answer:
2 × 1 = 2
2 × 2 = 4
2 × 3 = 6
2 × 4 = 8
2 × 5 = 10
2 × 6 = 12
2 × 7 = 14

14 ÷ 2 = 7

3rd Standard Maths Guide Numbers Additional Questions and Answers

Question 1.
Divide 15 pencils into a group of 5 each.

Answer:

15 ÷ 5 = 3

Question 2.
Divide 16 balloons into groups of 4 each.

Answer:

16 ÷ 4 = 4

Question 3.
Divide and find the quotient.

(i) 32 ÷ 4 =
Answer:
4 × 1 = 4
4 × 2 = 8
4 × 3 = 12
4 × 4 = 16
4 × 5 = 20
4 × 6 = 24
4 × 7 = 28
4 × 8 = 32

32 ÷ 4 = 8

(ii) 21 ÷ 3 =
Answer:
3 × 1 = 3
3 × 2 = 6
3 × 3 = 9
3 × 4 = 12
3 × 5 = 15
3 × 6 = 18
3 × 7 =21

21 ÷ 3 = 7

Question 4.
Arjun has 10 apples. He divides them among 2 of his friends. How many apples would each friend get?

Answer:

Each would get 5 apples.

Samacheer Kalvi 3rd Standard Maths Guide

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

Complete the following table. (Text Book Page No. 2):

Ans:

Repeated adddition.

ii) Find the total number of leaves.

Ans:
4 + 4 + 4 + 4 + 4 = 16
4 × 4 = 16

iii) How many apples are there in four plates.

Ans:
There are four plates. Each has five apples.
Total number of apples = 5 + 5 + 5 + 5 = 20 ⇒ 5 × 4 = 20

Activity (Text Book Page No. 5):

Ans:

Exercise (Text Book Page No. 5):

Ans:

Activity (Text Book Page No. 7):

Shall we say the multiples of 3.

Ans:

Multiples of 3 = 3, 6, 9, 12, 15, 18.

Exercise (Text Book Page No. 7):

Question 1.
Fill in the following tables:

Ans:

Question 2.
Fill in the boxes.

a. 6 × 3 =
Ans:
18

b. 5 × 3 =
Ans:
15

c. 3 × 3 =
Ans:
9

d. × 3 = 9
Ans:
3

e. 10 × 3 =
Ans:
30

f. 3 × 6 =
Ans:
18

g. 8 × 3 =
Ans:
24

h. 2 × = 6
Ans:
3

i. 4 × 3 =
Ans:
12

j. 3 × 10 =
Ans:
30

k. 3 × 4 =
Ans:
12

l. 9 × 3 =
Ans:
27

Exercise (Text Book Page No. 9):

Question 1.
Complete the table.

Ans:

Question 2.

If there are 4 toys in a box, how many toys will be there in 5 boxes?
Ans:
4 × 5 = 20

Question 3.
Fill in the boxes.

a. 3 × = 12
Ans:
4

b. 5 × 4 =
Ans:
20

c. × 4 = 28
Ans:
7

d. 9 × 4 =
Ans:
36

e. 6 × = 24
Ans:
4

f. × 3 = 12
Ans:
4

g. 4 × = 12
Ans:
3

h. × 4 = 40
Ans:
10

Exercise (Text Book Page No. 11):

Question 1.
Fill in the blanks.

a. ___ × 5 = 10
Ans:
2

b. 4 × ___ = 20
Ans:
5

c. 6 × 5 = ___
Ans:
30

d. 9 × ___ = 45
Ans:
5

e. ___ × 5 = 50
Ans:
10

Question 2.

If there are 6 roses in a vase, how many roses will be there in 6 vases?

× =

Ans:
6 × 6 = 36

Exercise (Text Book Page No. 13):

Complete the following table.

Ans:

Exercise (Text Book Page No. 13):

Question 1.
Multiply the following numbers by regrouping.

(i) 75 × 8
Ans:
75 × 8 = (70 + 5) × 8
= 560 + 40 = 600

(ii) 26 × 5
Ans:
26 × 5 = (20 + 6) × 5
= 100 + 30 = 130

(iii) 372 × 6
Ans:
372 × 6 = (300 + 70 + 2) × 6
= 1800 + 420 + 12
= 2232

(iv) 402 × 7
Ans:
402 × 7 = (400 + 2) × 7
= 2800 + 14
= 2814

(v) 752 × 3
Ans:
752 × 3 = (700 + 50 + 2) × 3
= 2100 + 150 + 6
= 2256

Exercise (Text Book Page No. 16):

Question 1.
Find the product using standard algorithm.

(i) 20 × 2 = ___
Ans:
40

(ii) 21 × 4 = ___
Ans:
84

(iii) 65 × 5 = ___
Ans:
325

(iv) 14 × 3 = ___
Ans:
42

(v) 26 × 10 = ___
Ans:
260

Question 2.
Complete the following table.

i) If the cost of one pen is ₹ 5, what will be the cost of 8 pens?
Ans:
8 × 5 = 40

ii) If there are 7 balls in a bag, how many balls will be there in 4 bags?
4 × 7 = ___
Ans:
4 × 7 = 28

iii) If the cost of one book is ₹ 10, what will be the cost of 7 books?
___ × 10 = ___
Ans:
10 × 7 = 70

iv) If there are 6 buttons in a shirt, how many buttons will be there in 3 shirts?
___ × + ___ = ___
Ans:
6 × 3 = 18

Question 3.
Find the product of the following numbers using lattice multiplication.

i) 22 × 25
Ans:

22 × 25 = 550

ii) 34 × 51
Ans:

34 × 51 = 1734

iii) 45 × 24
Ans:

45 × 24 = 1080

Exercise (Text Book Page No. 18):

Question 1.
If there are 4 toys in a box. How many toys will be there in 9 boxes?

Ans:
Number of Boxes = 9
Number of toys in each box = 4
Total number of toys = 9 × 4 = 36

Question 2.
If there are 3 colour pencils in a packet. How many pencils will be there in 9 packets.

Ans:
Number of packets = 9
Number of colour pencils in each packet = 3
Total number of colour pencils = 9 × 3 = 27

Question 3.
Write the multiplication fact for the following products

Ans:

3rd Standard Maths Guide Numbers Additional Questions and Answers

I. Fill in the boxes.

(i) 2 × 7 =
Ans:
14

(ii) 6 × 2 =
Ans:
12

(iii) × 2 = 20
Ans:
10

(iv) 2 × 9 =
Ans:
18

 

(v) 2 × 5 =
Ans:
10

(vi) 2 × 4 =
Ans:
8

(vii) 3 × 8 =
Ans:
24

(viii) 6 × 3 =
Ans:
18

(ix) 7 × = 21
Ans:
3

(x) 10 × 4 =
Ans:
40

(xi) 3 × 4 =
Ans:
12

(xii) 4 × = 20
Ans:
5

(xiii) 6 × = 30
Ans:
5

(xiv) 7 × 5 =
Ans:
35

(xv) 2 × = 20
Ans:
10

II. Multiply the following numbers by regrouping.

(i) 57 × 8
Ans:
57 × 8 = (50 + 7) × 8
= 400 + 56
= 456

(ii) 65 × 7
Ans:
65 × 7 = (60 + 5) × 7
= 420 + 35
= 455

(iii) 841 × 4
Ans:
841 × 4 = (800 + 40 + 1) × 4
= 3200 + 160 + 4
= 3364

III. Find the product using standard algorithm.

(i) 32 × 5
Ans:

32 × 5 = 160

(ii) 17 × 4
Ans:

17 × 4 = 68

(iii) 46 × 3
Ans:

46 × 3 = 138

IV. Find the product of the following numbers using lattice multiplication.

(i) 33 × 45
Ans:

33 × 45 = 1485

(ii) 47 × 22
Ans:

47 × 22 = 1034

(iii) 56 × 61
Ans:

56 × 61 = 3416

V. Story Problem.

Question 1.
If there are 5 chocolate in a box. How many chocolates will be there in 8 boxes?
Ans:
Number of boxes = 8
Number of chocolates in each box = 5
∴ Total number of chocolates = 8 × 5 = 40

Question 2.
If the cost of one pen is ₹ 6, what will be the cost of 3 pens?
Answer:
Number of pens = 3
Cost of one pen = ₹ 6
Total cost of 3 pens = 3 × 6 = ₹ 18

Samacheer Kalvi 3rd Standard Maths Guide

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:

Samacheer Kalvi 3rd Standard Maths Guide