Question

Class 7 ch exponents and powers

Answer 1

Answer:

(2^10 ÷ 2^15) × 2^3 = 2^-2

Explanation:

(2^10 ÷ 2^15) × 2^3

= 2^(10-15) × 2^3

= 2^-5 × 2^3

= 2^(-5+3)

= 2^-2

Answer 2

$( {2}^{10} \div {2}^{15} ) \times {2}^{3} \\ \\ {2}^{10 - 15 + 3} \\ \\ {2}^{ - 2} \\ \\ {(\frac{1}{2}) }^{2} .$