Question

Arrange them in ascending order.

• A. $2\times {10}^{-3}$
• B. $2\times {10}^2$
• C. $2\times {10}^{-2}$
• D. $2\times 10$

Answer 1

$2\times {10}^{-3}=0.002$
$2\times {10}^{-2}=0.02$
$2\times {10}^1=20$
$2\times {10}^2=200$
$\Rightarrow$$2\times {10}^{-3}<2\times {10}^{-2}<2\times {10}^1<2\times {10}^2$