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Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers

Contents

  • 1 Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers
    • 1.1 Playing with Numbers Exercise 9A – Selina Concise Mathematics Class 6 ICSE Solutions
    • 1.2 Playing with Numbers Exercise 9B – Selina Concise Mathematics Class 6 ICSE Solutions
    • 1.3 Playing with Numbers Exercise 9C – Selina Concise Mathematics Class 6 ICSE Solutions
      • 1.3.1 Selina Concise Mathematics Class 6 ICSE Solutions

Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers

Selina Publishers Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers

Playing with Numbers Exercise 9A – Selina Concise Mathematics Class 6 ICSE Solutions

(Using BODMAS)
Question 1.
19 – (1 + 5) – 3
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 1

Question 2.
30 x 6 + (5 – 2)
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 2

Question 3.
28 – (3 x 8) + 6
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 3

Question 4.
9 – [(4 – 3) + 2 x 5]
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 4

Question 5.
[18 – (15 – 5) + 6]
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 5

Question 6.
[(4 x 2) – (4 + 2)] + 8
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 6

Question 7.
48 + 96 – 24 – 6 x 18
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 7

Question 8.
22 – [3 – {8 – (4 + 6)}]
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 8

Question 9.
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A Q9
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 9

Question 10.
60 – {16 + (4 x 6 – 8)}
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 10

Question 11.
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A Q11
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 11

Question 12.
15 – [16 – {12 + 21 ÷ (9 – 2)}]
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9A 12

Playing with Numbers Exercise 9B – Selina Concise Mathematics Class 6 ICSE Solutions

Question 1.
Fill in the blanks :
(i) On dividing 9 by 7, quotient = …………. and remainder = ……….
(ii) On dividing 18 by 6, quotient = …………. and remainder = ………….
(iii) Factor of a number is ………….. of …………..
(iv) Every number is a factor of …………….
(v) Every number is a multiple of …………..
(vi) …………. is factor of every number.
(vii) For every number, its factors are ………… and its multiples are …………..
(viii) x is a factor of y, then y is a ………… of x.
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9B 13

Question 2.
Write all the factors of :
(i) 16
(ii) 21
(iii) 39
(iv) 48
(v) 64
(vi) 98
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9B 14

Question 3.
Write the first six multiples of :
(i) 4
(ii) 9
(iii) 11
(iv) 15
(v) 18
(vi) 16
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9B 15

Question 4.
The product of two numbers is 36 and their sum is 13. Find the numbers.
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9B 16

Question 5.
The product of two numbers is 48 and their sum is 16. Find the numbers.
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9B 17

Question 6.
Write two numbers which differ by 3 and whose product is 54.
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9B 18

Question 7.
Without making any actual division show that 7007 is divisible by 7.
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9B 19

Question 8.
Without making any actual division, show that 2300023 is divisible by 23.
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9B 20

Question 9.
Without making any actual division, show that each of the following numbers is divisible by 11.
(i) 11011
(ii) 110011
(iii) 11000011
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9B 21

Question 10.
Without actual division, show that each of the following numbers is divisible by 8 :
(i) 1608
(ii) 56008
(iii) 240008
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9B 22

Playing with Numbers Exercise 9C – Selina Concise Mathematics Class 6 ICSE Solutions

Question 1.
find which of the following numbers are divisible by 2 :
(i) 352
(ii) 523
(iii) 496
(iv) 649
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 23

Question 2.
Find which of the following number are divisible by 4 :
(i) 222
(ii) 532
(iii) 678
(iv) 9232
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 24
Question 3.
Find the which of the following numbers are divisible by 8 :
(i) 324
(ii) 2536
(iii) 92760
(iv) 444320
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 25

Question 4.
Find which of the following numbers are divisible by 3 :
(i) 221
(ii) 543
(iii) 28492
(iv) 92349
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 26

Question 5.
Find which of the following numbers are divisible by 9 :
(i) 1332
(ii) 53247
(iii) 4968
(iv) 200314
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 27

Question 6.
Find which of the following number are divisible by 6 :
(i) 324
(ii) 2010
(iii) 33278
(iv) 15505
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 28

Question 7.
Find which of the following numbers are divisible by 5 :
(i) 5080
(ii) 66666
(iii) 755
(iv) 9207
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 29

Question 8.
Find which of the following numbers are divisible by 10 :
(i) 9990
(ii) 0
(iii) 847
(iv) 8976
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 30

Question 9.
Find which of the following numbers are divisible by 11 :
(i) 5918
(ii) 68,717
(iii) 3882
(iv) 10857
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 31

Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 32

Question 10.
Find which of the following numbers are divisible by 15 :
(i) 960
(ii) 8295
(iii) 10243
(iv) 5013
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 33

Question 11.
In each of the following numbers, replace M by the smallest number to make resulting number divisible by 3 :
(i) 64 M 3
(ii) 46 M 46
(iii) 27 M 53
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 34

Question 12.
In each of the following numbers replace M by the smallest number to make resulting number divisible by 9.
(i) 76 M 91
(ii) 77548 M
(iii) 627 M 9
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 35

Question 13.
In each of the following numbers, replace M by the smallest number to make resulting number divisible by 11.
(i) 39 M 2
(ii) 3 M 422
(iii) 70975 M
(iv) 14 M 75
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 36
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 37

Question 14.
State, true or false :
(i) If a number is divisible by 4. It is divisible by 8.
(ii) If a number is a factor of 16 and 24, it is a factor of 48.
(iii) If a number is divisible by 18, it is divisible by 3 and 6.
(iv) If a divide b and c completely, then a divides (i) a + b (ii) a – b also completely.
Solution:
Selina Concise Mathematics Class 6 ICSE Solutions Chapter 9 Playing with Numbers Ex 9C 38

Selina Concise Mathematics Class 6 ICSE Solutions

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