1. Using Sig Figs in Calculations
Addition and Subtraction:
The answer must have the same number of decimal places as the factor with the least number of decimal places.

2. Using Sig Figs in Calculations
calculator says answer with correct sig figs: round to the ones place: 1274

3. Using Sig Figs in Calculations
17.57 m m m =
14 cm cm cm =
13.2 Pa – 1.25 Pa =
273.5 K – 26.5 K =

4. Using Sig Figs in Calculations
Multiplication and Division:
The answer must have the same no. of sig figs as the factor with the least number of sig figs.

5. Using Sig Figs in Calculations
÷ 5.0 = calc. says 3.075
sf:
must round answer to 2 sig figs:
3.1

6. Using Sig Figs in Calculations
8.654 m x 0.34 m =
2.10 cm x 0.50 cm =
mL ÷ 8.4 =
0.365 m ÷ =