Class 6 maths Exercise 3.1 solutions

NCERT mathematics class 6 chapter 3 Playing with Numbers exercise 3.1 solutions are given. You should study the textbook lesson Playing with Numbers very well. You should also observe and practice all example problems and solutions given in the textbook. You can observe the solutions given below and try them in your own method. NCERT maths class 6 solutions Exercise 3.1 Exercise 3.2 Exercise 3.3 Exercise 3.4 Exercise 3.5 Exercise 3.6 Exercise 3.7 CA foundation maths solutions 

Chapter 3 exercise 3.1 solutions Playing with Numbers class 6 Maths NCERT

6th CBSE maths solutions Chapter 3 Playing with Numbers Exercise 3.1

NCERT class 6 maths exercise 3.1 Playing with Numbers Chapter 3

Problem 1 Write all the factors of the following:

1. Write all the factors of the following numbers:

a. 24        b. 15           c.  21             d. 27

e. 12        f. 2              g. 18             h. 23        i. 36 Solutions: a. 24 24 = 1 × 2 24 = 2 × 12 24 = 3 × 8 24 = 4 × 6 24 = 6 × 4 Therefore, the factors of 24 are 1, 2, 3, 4, 6, 8, 12 and 24. b. 15 15 = 1 × 15 15 = 3 × 5 15 = 5 × 3 Therefore, the factors of 15 are 1, 3, 5 and 15. c. 21 21 = 1 × 21 21 = 3 × 7 21 = 7 × 3 Therefore, the factors of 21 are 1, 3, 7 and 21. d. 27 27 = 1 × 27 27 = 3 × 9 27 = 9 × 3 Therefore, the factors of 27 are 1, 3, 9 and 27. e. 12 12 = 1 × 12 12 = 2 × 6 12 = 3 × 4 12 = 4 × 3 Therefore, the factors of 12 are 1, 2, 3, 4, 6 and 12. f. 20 20 = 1 × 20 20 = 2 × 10 20 = 4 × 5 20 = 5 × 4 Therefore, the factors of 20 are 1, 2, 4, 5, 10 and 20. g. 18 18 = 1 × 18 18 = 2 × 9 18 = 3 × 6 18 = 6 × 3 Therefore, the factors of 18 are 1, 2, 3, 6, 9 and 18. h. 23 23 = 1 × 23 Therefore, the factors of 23 are 1 and 23. i. 36 36 = 1 × 36 36 = 2 × 18 36 = 3 × 12 36 = 4 × 9 36 = 6 × 6 36 = 9 × 4 Therefore, the factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18 and 36. 2. Write first five multiples of 5,8, 9.

2. Write first five multiples of:

a. 5       b. 8       c. 9

Solutions : a. 5 5 × 1 = 5 5 × 2 = 10 5 × 3 = 15 5 × 4 =20 5 × 5 = 25 Therefore, the first five multiples of 5 are 5, 10, 15, 20 and 25. b. 8 8 × 1 = 8 8 × 2 = 16 8 × 3 = 24 8 × 4 = 32 8 × 5 = 40 Therefore, the first five multiples of 8 are 8, 16, 24, 32 and 40. c. 9 9 × 1 = 9 9 × 2 = 18 9 × 3 = 27 9 × 4 = 36 9 × 5 = 45 Therefore, the first five multiples of 9 are 9, 18, 27, 36 and 45.

3. Match the items in column 1 with the items in column 2.

Column 1              Column 2

i. 3                           a. Multiple of 8

ii. 1                          b. Multiple of 7

iii. 16                     c. Multiple of 70

iv. 2                       d. Multiple

v. 25                    e. Factor of 50

                             f. Factor of 20

SOLUTION ; i) – b) ii) d) iii- a) iv) – f) v) – e)

4. Find all the multiples of 9 up to 100.

Solution : The multiples of 9 up to 100 are 9, 18, 27, 36, 45, 54, 63, 72, 81, 90 and 99. Note: Observe the solutions and try them in your own method. Inter maths solutions SSC maths class 10 solutions NCERT class 7 maths solutions NCERT class 8 chapter exercise 3.3 solutions