Question

Add parentheses to the expression so that its value is 45:

5 × 4 + 8 - 3

5 × (4 + 8 - 3)
5 × (4 + 8) - 3
5 × 4 + (8 - 3)
no parentheses are needed

Answer 1

your answer is 5×(4+8-3) ...
4+8 =12-3=9 and 9 ×5 =45