Question

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Answer 1

Answer:

(i) -32

(ii) -24

(iii) 0

(iv) -16

Step-by-step explanation:

(i) 7 - (√144 + 3³)

=> 7 - (12 + 27)

=> 7 - 39 => -32

(ii) 160 ÷ (-40) - 2 × 10

=> (160/-40) - (2*10)          [BODMAS]

=> (-4) - 20 => -24

(iii) [2 + (-∛125)] × 0

The problem in the bracket need not be solved as there is a 0 being multiplied to it, and anything multiplied by 0 is 0.

Thus, [2 + (-∛125)] × 0 = 0

(iv) [(-15 + 5) × 2 + 8] - 32 ÷ 8

=> [(-10) × 2 + 8] - 4           [BODMAS]

=> [-20 + 8] - 4

=> -12 - 4 => -16