Question

Find the product (1.9×10³)(4.5×10²)

Answer 1

1.9 x 1000 (10x10x10) = 1,900
4.5 x 100 (10x10) = 450

1,900 x 450= 855,000

Answer 2

(1.9 x 10^3)(4.5 x 10^2) =
(1.9 x 4.5) x (10^3 * 10^2) =
8.55 x 10^5 or 855,000