S. K. Gupta Anubhuti Gangal Class 5 Math Seventh Chapter Simplification (Order Of Operations) Exercise 26

S. K. Gupta Anubhuti Gangal Class 5 Math Seventh Chapter Simplification (Order Of Operations) Exercise 26

EXERCISE 26

Simplify:

 (1) (3 + 4) × 5

= 7 × 5

= 35

(2) (18 – 3) ÷ 5

= 15 ÷ 5

= 3

(3) 7 ÷ (10 – 3)

= 7 ÷ 7

= 1

(4) 9 ÷ (6 – 3)     

= 9 ÷ 3

= 3

(5) (12 ÷ 4) + 3      

= 3 + 3

= 6

(6) (8 + 7) ÷ (3 + 2)

= 15 ÷ 5

= 3

(7) (21 ÷ 3) ÷ 7

= 7 ÷ 7

= 1

(8) 5 + (16 ÷ 8)

= 5 + 2

= 7

(9) [7 + (18 ÷ 9)] + 3

= [7 + 2] + 3

= 9 + 3

= 12

(10) 50 – [(25 ÷ 5) × 7]     

= 50 – [5 × 7]

= 50 – 35

= 15

(11) 16 ÷ [2 + (42 ÷ 7)]

= 16 ÷ [2 + 6]

= 16 ÷ 8

= 2

(12) [(60 ÷ 3) × 5] ÷ (27 – 2)

= [20 × 5] ÷ 25

= 100 ÷ 25

= 4

(13) Place ( ) or [ ] or both in each sentence below to make the sentence true.

(a) 36 ÷ 6 + 3 × 2 = 8

Ans: [36 ÷ (6 + 3)] × 2

(b) 36 ÷ 6 + 3 × 2 = 18

Ans: [(36 ÷ 6) + 3] × 2

(c) 36 ÷ 6 + 3 × 2 = 12

Ans: (36 ÷ 6) + (3 × 2)

(d) 36 ÷ 6 + 3 × 2 = 3

Ans: 36 ÷ [6 + (3 × 2)]

(e) 36 ÷ 6 + 3 × 2 = 2

Ans: 36 ÷ [(6 + 3) × 2]