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Mathsight Class 6 Solutions Chapter 2 Playing with Numbers
Welcome to NCTB Solutions. Here with this post we are going to help 6th class students to solve MathSight Class 6 Mathematics Book, Chapter 2, Playing with Numbers. Here students can easily get all the exercise questions solution for Chapter 2, Playing with Numbers Exercise 2.1 and 2.2
Playing with Numbers Exercise 2.1 Solution :
Question no – (1)
Solution :
(a) 7 × 7 ÷ 7 + 7 – 7
= 7 × 1 + 7 – 7
= 7 + 7 – 7
= 7
(b) 43 + 12 × 4 + 15 – 21
= 43 + 48 – 15 – 21
= 91 – (15 + 21)
= 91 – 36
= 55
(c) 168 ÷ 8 + 5 × 12 – 38
= 21 +60 – 38
= 81 – 28
= 53
(e) 412 – 108 + 315 ÷ 45 × 157
= 412 – 108 + 7 × 157
= 412 – 108 + 1099
= 304 + 1099
= 1403
(f) 196 ÷ 14 × 23 – 200 + 195
= 14 × 23 – 200 + 195
= 322 – 200 + 195
= 122 + 195
= 317
(g) 325 × 25 + 270 – 169 ÷ 13
= 8125 + 270 – 13
= 8125 – 257
= 7868
(h) 241 + 300 ÷ 25 × 17 – 218
= 241 + 12 × 17 – 218
= 241 + 204 – 218
= 227
(i) 16 × 2 of 4 ÷ 24 + 18 – 9
= 16 × 2 × 6 + 18 – 9
= 192 + 18 – 9
= 192 + 9
= 201
(j) 16 × 24 ÷ 3/7 of 28 + 15
= 16 × 57.14 × 28 + 15
= 25598.72 + 15
= 25,613.72
(k) 25 ÷ 5 × 7 + 6 × 30 ÷ 3 of 5
= 5 × 7 + 6 × 10 × 5
= 35 + 300
= 335
Question no – (2)
Solution :
12 – (4 × 2) + (5×6)
= 12 – 8 + 30
= 34
Question no – (3)
Solution :
= 25 ÷ 5 × 5 + 35 – 10
= 50
Question no – (4)
Solution :
(a) [(200 ÷ 5 ) × 106] ÷ 2
= (100 × 106) ÷ 2
= 50 × 106
Question no – (5)
Solution :
4 Sisters and 3 brothers
Playing with Numbers Exercise 2.2 Solution :
Question no – (1)
Solution :
(a) 80 – [24 – {16 ÷ (9-1)}
= 80 – [24 – {16 ÷ 8}]
= 80 – [24 – 2]
= 80 – 22
= 58
(b) 96 ÷ [3 {6 – (20-18)}]
= 96 ÷ [ 3 { 6 – 2}]
= 96 ÷ [3 × 4]
= 96 ÷ 12
= 7
(c) 120 + [14 × {20 – (20 ÷ 4)}]
= 120 + [14 × {20 – 5}]
= 120 + [ 14 × 15]
= 120 + 210
= 330
(d) 888 × [ 72 ÷ {65 + (14 ÷ 2}]
= 888 × [72 ÷ {65 + 7}]
= 888 × [72 ÷ 72]
= 888 × 1
= 888
(e) 78 – [ 5 + 3 of (25 – 2 × 10)]
= 78 – [ 8 × (25 – 20)]
= 78 – [8 × 5]
= 78 – 40
= 38
(f) 52 – 4 of (17 – 12) + 4 × 7
= 52 – 4 × 5 + 28
= 52 – 2 + 28
= 52 + 8
= 60
(g) 19 × [36 + 30 – (11 + 5 -2)]
= 19 × [96 + 30 – 11 + 3]
= 19 × [126 – 14]
= 19 × [112]
= 2128
(h) 1440 – [24 – {15 – (2 × 3 + 1)}]
= 1440 – [24 – {15 – (2 × 4)}]
= 1440 – [24 – {15 – 8}]
= 1440 – [24-7]
= 1440 – 17
= 1423
(i) 24 + 13 – 45 × 1/2 of 10 – 45 ÷ (17-2)
= 24 + 13 – 2.5 × 10 – 45 ÷ 15
= 24 + 13 – 25 – 3
= (24+13) – (25 + 3)
= 37 – 28
= 9
(f) 100 – [90 – {80 – (70 – 10 -50)}]
= 100 – [90 – {80 – (70-60)}]
= 100 – [90 – {80-10}]
= 100 – [90-70]
= 100 – 20
= 80
(k) (9+12) ÷ 7 + 36 ÷ 2 of 3
= 21 ÷ 7 + 18 × 3
= 3 + 54
= 57
(l) 16 + [7 + {(3+7) – 5 – 3}]
= 16 + [7 + {(10 – 2)}]
= 16 + [ 7 + 18]
= 16 + 15
= 31
Question no – (2)
Solution :
(a) 15, 18, 24, 36, 60,…….
= 15 = 15 × 1
= 18 = 18 × 1
= 24 = 24 × 1
Question no – (3)
Solution :
= 0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + (8 × 9)
= 100
Previous Chapter Solution :
