Question

1) {4+2×[10-(5+1)-3]}^2

2) {10-[90÷(17+28)]}^2

3) 54-3×[(7+6÷2)-(4×3-5)]-2^3

Answer 1

1) {4+2x[10-6-3]}^2
{4+2x1}^2
{4+2}^2
8^2
64

2){10-[90/45]^2
{10-2}^2
8^2
64

3) 54-3x[(7+3)-(12-5)]-8
54-3x[10-7]-8
54-3x3-8
54-9-8
54-17
37