1. Part 2 Significant Figures with Calculations

2. Reading Glassware
Identify the glassware if you know it. Then record the readings to the correct sig figs: A B C

3. Reading Glassware
Identify the glassware if you know it. Then record the readings to the correct sig figs: E D

4. Multiplication and Division Sig. Fig.
When multiplying and dividing, limit and round to the least number of significant figures in any of the numbers involved in the calculation.
x = 2.567
3 sig fig sig. fig.
With sig. fig. 2.6 (2 sig. fig.)

5. Multiplication and Division Sig. Fig.
x =
4 sig fig. 3 sig. fig.
Answer is 1.60 (3 sig. fig.)
 =
5 sig. fig sig. fig
Answer is 0.29 (2 sig. fig.)

6. Question Time 1
Calculate using the appropriate number of sig. fig.
23.4 x 56
1.456 x 5
0.065 x 23.5
25  60
 5.00
1300 (1310.4)
7 (7.28)
1.5 (1.5275)
0.4 ( )
49.0 (49)

7. Addition and Subtraction with Sig. Fig.
When adding and subtracting, limit and round your answer to the least number of decimal places in any of the numbers involved in the calculation. =
(1) (3) (2)
With correct sig fig  (1 place)

8. Question Time 2
Add or subtract using the correct number of significant figures
26.9 – 19
– 34.2
72 (72.045) 8 (7.9) 81.3 (81.303) 11.4 ( )