Question

CLASS - 7
simplify
a) 2 × $10^{3}$
b) $2^{5}$ × $3^{2}$
c) ( $5^{3}$ - $7^{2}$ ) ^ 2

Answer 1

a) 2×10³ = 2×1000 = 2000

b) 2⁵×3² = 32×9 = 288

c) (5³-7²)² = (125-49)² = (76)² = 5776