Question

$8 \times 10 {}^{ - 3} + 2 \times 10 {}^{ - 2}$
помогите помогите помогите помогите​

Answer 1

Ответ:

$8 \times {10}^{ - 3} + 2 \times {10}^{ - 2} = {2}^{3} \times {10}^{ - 3} + 2 \times {10}^{ - 2} = 2 \times {10}^{ - 3} \times ( {2}^{2} + 10) = 2 \times \frac{1}{1000} \times 14 = \frac{28}{1000}$