NCERT Solutions For Class 3 Maths Chapter 9 How many times?

How many times ?

LEGGY ANIMALS

Question 1:

  1. How many spiders? ____
  2. One spider has ____ legs.
  3. In all, spider legs are 3 times ____
  4. Or, ____ + ____ + ____ = ____
  5. Or 3 x ____ = ____

Answer:

  1. How many spiders? 3
  2. One spider has 8 legs.
  3. In all, spider legs are 3 times 8
  4. Or, 8 + 8 + 8 = 24
  5. Or 3 x 8 = 24

Question 2:

So how many legs altogether do 5 octopuses have?

Answer:

8 + 8 + 8 + 8 + 8 = 40 legs

Or, 5 times 8 = 40 legs

Or, 5 x 8 = 40 legs

FIND THE NUMBER WITHOUT COUNTING

Question:

In the same way, how many bottles are these?

Answer:

4 times 5 = 4 x 5 = 20 bottles.

Question:

How many eggs?

Answer:

6 times 5 = 6 x 5 = 30 eggs.

PRACTICE TIME

Question A:

  1. 4 × 18 is 4 times ___ or ___ + ___ + ___ + ___
  2. 3 × 20 is ___ times ___ or ___ + ___ + ___
  3. 8 × 9 is ___ times ___ or ___ + ___ + ___ + ___ + ___ + ___ + ___ + ___ + ___

Answer:

  1. 4 × 18 is 4 times 18 or 18 + 18 + 18 + 18
  2. 3 × 20 is 3 times 20 or 20 + 20 + 20
  3. 8 × 9 is 8 times 9 or 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9

Question B:

Tell how many times!

Answer:

  • 8 + 8 + 8 = 3 × 8 = 24
  • 3 + 3 + 3 + 3 + 3 = 5 × 3 = 15
  • 30 + 30 + 30 = 3 × 30 = 90
  • 7 + 7 + 7 + 7 + 7 + 7 = 7 × 642
  • 12 + 12 + 12 + 12 = 4 × 12 = 48
  • 6 + 6 + 6 = 6 × 3 = 18
  • 10 + 10 + 10 + 10 = 4 × 10 = 40
  • 2 + 2 + 2 + 2 + 2 = 2 × 5 = 10
  • 6 + 6 + 6 + 6 + 6 + 6 + 6 = 7 × 42

Question C:

Ramu bought 4 packets of biscuits. Each packet has 4 biscuits. How many biscuits did Ramu buy?

Answer:

Ramu bought 4 x 4 = 16 biscuits.

Question D:

There are 12 desks in a classroom. Each desk has 4 legs. What is the total number of legs of the desks?

Answer:

Total number of legs of the desks = 12 x 4 = 48 legs.

Question E:

Sabiha brought home 3 bunches of flowers. Each bunch has 4 flowers. How many flowers were there?

Answer:

Total number of flowers = 3 x 4 = 12 flowers.

Question F:

One rail coach has 8 wheels. How many wheels in all in 6 coaches?

Answer:

Total number of wheels in 6 coaches = 8 x 6 = 48 wheels.

HOW MANY TIMES 2?

Question:

Fill in the blanks

Answer:

Class 3 Maths Chapter 9 - 1

JUMP WITH ME

Question:

Tarru Frog jumps 3 steps each time. Which numbers will Tarru touch?

Answer:

Class 3 Maths Chapter 9 - 2

STICK PLAY

Question:

Try making a 2 times table with sticks

Answer:

  1. 1 × 2 = 2
  2. 2 × 2 = 4
  3. 3 × 2 = 6
  4. 4 × 2 = 8
  5. 5 × 2 = 10
  6. 6 × 2 = 12
  7. 7 × 2 = 14
  8. 8 × 2 = 16
  9. 9 × 2 = 18
  10. 10 × 2 = 20

Question:

Now draw sticks to make the multiplication table of 6.

Answer:

  1. 1 × 6 = 6
  2. 2 × 6 = 12
  3. 3 × 6 = 18
  4. 4 × 6 = 24
  5. 5 × 6 = 30
  6. 6 × 6 = 36
  7. 7 × 6 = 42
  8. 8 × 6 = 48
  9. 9 × 6 = 54
  10. 10 × 6 = 60

SHOPPING WITH TABLES

Question:

How much do these things cost?

  1. 4 toffees cost ____ rupees.
  2. 3 pencil boxes cost ____ rupees.
  3. 10 pencil boxes cost ____ rupees.
  4. 9 balloons cost ____ rupees.
  5. 5 toys cost ____ rupees.
  6. 7 face masks cost ____ rupees.

Answer:

  1. 4 x 2 = 8 rupees
  2. 3 x 10 = 30 rupees
  3. 10 x 10 = 100 rupees
  4. 9 x 5 = 45 rupees
  5. 5 x 4 = 20 rupees
  6. 7 x 3 = 21 rupees

PRACTICE TIME

Question A:

Complete the following:

Answer:

  1. 2 × 7 = 14
  2. 3 × 9 = 27
  3. 4 × 9 = 36
  4. 5 × 2 = 10
  5. 5 × 8 = 40
  6. 3 × 10 = 30
  7. 10 × 6 = 60
  8. 2 × 8 = 16
  9. 5 × 9 = 45
  10. 10 × 8 = 80

Question B:

Look at the patterns and complete them.

Answer:

  • 3, 6, 9, 12, 15, 18.
  • 2, 4, 6, 8, 10, 12.
  • 10, 20, 30, 40, 50, 60.
  • 4, 8, 12, 16, 20, 24.
  • 5, 10, 15, 20, 25, 30.
  • 30, 60, 90, 120, 150, 180

Question C:

Complete the multiplication tree

Answer:

Class 3 Maths Chapter 9 - 3

Question D:

How many in all?

  1. A shirt has 5 buttons. How many buttons would 3 shirts have?
  2. There are four fans. Each fan has 3 blades. What is the total number of blades in all?
  3. A box contains 6 apples. How many apples in all will seven boxes have?
  4. How many corners would 4 triangles have?

Answer:

  1. 5 x 3 = 15 buttons
  2. 4 x 3 = 12 blades
  3. 6 x 7 = 42 apples
  4. 4 x 3 = 12 corners

Question E:

Some multiplication facts

Answer:

Class 3 Maths Chapter 9 - 4

PRACTICE TIME

Question A:

Multiply

Answer:

  1. 22 × 3 = 66
  2. 43 × 2 = 86
  3. 21 × 4 = 84
  4. 24 × 2 = 48
  5. 11 × 5 = 55
  6. 30 × 5 = 150
  7. 20 × 4 = 80
  8. 23 × 9 = 207
  9. 26 × 4 = 104
  10. 38 × 2 = 76
  11. 25 × 3 = 75
  12. 24 × 5 = 120
  13. 35 × 3 = 105
  14. 48 × 4 = 192
  15. 32 × 5 = 160
  16. 58 × 2 = 116

Question B:

First guess the answer and then calculate:

  1. A flower has five petals. A bunch of flowers has 13 flowers. How many petals are there in the bunch?
  2. A book has 64 pages. What will be the total number of pages in 8 such books?
  3. Students stand in rows in the assembly. There are six rows of students. Each row has 17 students. How many students are there?
  4. A design has 3 flowers in it. A piece of cloth has 17 such designs. How many flowers will be on the cloth?

Answer:

  1. Total number of petals = 5 x 13 = 65 petals.
  2. Total number of pages = 64 x 8 = 512 pages.
  3. Total number of students = 6 x 17 = 102 students.
  4. Total number of flowers on the cloth = 3 x 17 = 51 flowers.

PRACTICE TIME

Question 1:

First guess the answer and then check it by calculating:

Answer:

  1. 42 × 23 = 966
  2. 73 × 11 = 803
  3. 51 × 13 = 663
  4. 54 × 12 = 648
  5. 25 × 36 = 900
  6. 12 × 14 = 168

MULTIPLICATION PATTERNS

Question A:

Class 3 Maths Chapter 9 - 5

Did you see the pattern in the 9 times table? What numbers are adding up to 9?

Answer:

Class 3 Maths Chapter 9 - 6

Yes, the pattern in the 9 times table is that the sum of the digits in the product is always 9.

Question B:

Complete the grid by multiplying the numbers

Answer:

Class 3 Maths Chapter 9 - 7

Question c: 

Look for other such crosses and copy them in your Notebook

Answer:

Class 3 Maths Chapter 9 - 8
  • 6 + 12 + 18 = 36 = 10 + 12 + 14
  • 9 + 18 + 27 = 54 = 16 + 18 + 20
  • 8 + 10 + 12 = 30 = 5 + 10 + 15

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