Question

The expected value of each expression is given with it. Insert brackets in the expression so as to get the expected value.

(2) 4 × 13 + 2 + 40 (value 100)

Answer 1

To get the value 100, we have to place the brackets as follows:
4 × (13 + 2) + 40

It can be solved as follows:
4 × 15 + 40 (Solving simple brackets first)
= 60 + 40 (Performing multiplication first)
= 100