Question

Express 32.392800 to four significant figures

Answer 1

3239 × 10^-4 ........

Answer 2

Significant figures mean:these are digits that carry meaning in a number.

Significant figures should not be confused with decimal places since in writing a number to given decimal places, we consider the digits after the decimal point.

In significant figures both the digits before the decimal place and after the decimal place count.

For this reason writing 32.392800 in four significant figures we have :

32.39