Question

What is the standard form of 0.0023?

• A. 2.3 $\times$ ${10}^{-3}$
• B. 2.3 $\times$ ${10}^3$
• C. 23 $\times$ ${10}^{-3}$
• D. 23 $\times$ ${10}^3$

Answer 1

The correct option is A

2.3 $\times$ ${10}^{-3}$

To express 0.0023 in standard form, we have to move the decimal three place to the right.

So, 0.0023 = 2.3 $\times$ ${10}^{-3}$