Algebra Examples

$6.02 \cdot 10^{23}$

Step 1

Rules for determining significant figures:

Digits that are non-zero are significant.

Leading zeros are not significant.

Trailing zeros are significant only in the decimal portion of a number.

Zeros that are between significant digits are also significant.

Step 2

The underlined digits are the ones that are significant.

$6$

$0$

$2$

$\cdot$

$10^{23}$

Step 3

There are $3$ significant figures.

$3$