NCERT Class 7 Mathematics

190 MATHEMATICS

EXERCISE 9.2

1. Find the sum:

(i)

511

44

+⎛⎞

⎜⎟⎝⎠ (ii)

53

35

+ (iii)^922

10 15

+

(iv)

35

11 9

+ (v)^8 ()^2

19 57

+ (vi)

(^20)
3

• (vii)
  2413
  35


• 
  

2. Find

(i)

717

24 36 (ii)

56

63 21

⎛⎞

⎜⎟⎝⎠ (iii)

67

13 15

⎛⎞

⎜⎟⎝⎠

(iv)

37

811 (v)

261

9

3. Find the product:

(i)

97

24

×⎛⎞

⎜⎟⎝⎠ (ii) ( )

(^39)
10
× (iii)
69
511
×
(iv)
32
75
×⎛⎞
⎜⎟⎝⎠ (v)
32
11 5
× (vi)^35
53
×

4. Find the value of:

(i)

(4)^2

3

÷ (ii)^32

5

÷ (iii)^4 ( 3 )

5

÷

(iv)

13

84

÷ (v)^21

13 7

÷ (vi)

72

12 13

÷⎛⎞

⎜⎟⎝⎠

(vii)

34

13 65

÷⎛⎞

⎜⎟⎝⎠

TRYTHESE

Find: (i)

27

38

× (ii)

• 65
  77
  ×