New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 6 Whole Numbers Self Practice 2C Solution
(1) (a) 5973 ÷ 1 = 5973
(b) 0 ÷ 675 = 0
(c) 9087 ÷ 9087 = 1
(d) 100 – (593 ÷ 593)
= 100 – 1
= 99
(e) 500 ÷ (98 – 48)
= 500 ÷ 50
= 500 /50
= 10
(f) 0 ÷ (880 ÷ 880)
= 0 ÷ 1
= 0
(g) 2345 ÷ (2345 ÷ 2345)
= 2345 ÷ 1
= 2345
(h) 786 ÷ 786
= 1
(i) 859 ÷ 859
= 1
(j) (790 – 790) ÷ (790 ÷ 1)
= 0 ÷ 790
= 0
(2) (a) False
(b) True
(c) False
(d) True
(e) False as because it is meaningless.
(3) (a) 0 ÷ a = 0
∴ a = any number
Eg – 0 ÷ 2 = 0
0 ÷ 14 = 0
(b) 62 ÷ 62 = n
∴ n = 1
(c) a ÷ 19 = 0
∴ a = 0
(d) m ÷ 876 = 0
∴ m = 0
(e) 0 ÷ 2058
∴ x = 0
(f) (85 – 34) ÷ n = 3
Or, 51 ÷ n = 3
∴ n = 51/3 = 17
(g) (81 ÷ 9) x n = 9
or, 9 x n = 9
∴ n = 9/9
= 1
(h) 2958 ÷ 2958 + 0 ÷ 2958 – n
or, 1 + 0 ÷ 2958 = x
or, 1 + 0 = x
∴ x = 1
(4) (a) 98 x 12 – 78 x 12
= (98 x 12) – (78 x 12)
= 1176 – 936
= 240
(b) 10000 ÷ 100 ÷ 100
= (10000 ÷ 100) ÷ 100
= 100 ÷ 100
= 1
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