1. Significant Digits
Calculations

2. Rules for Addition and Subtraction
When you _____________ or _____________ measurements, your answer must have the same number of _____________ as the one with the fewest
For example:

3. Addition & Subtraction Problems=
23.67 – 500 = = =
95.00 – =
_____________

4. Rules for Multiplication & Division
When you _____________ and _____________ numbers you look at the TOTAL number of _____________ NOT just decimal places
For example:
x 2.54

5. Multiplication & Division Problems
x 12.3 =
/ =
(48.12)(2.95) =
58.30 / =
/ =
_____________

6. More Significant Digit Problems
18.36 g / cm3
°C –23.20 °C
324.5 mi / 5.5 hr
21.8 °C °C
460 m / 5 sec
_____________