Homework:
Significant Figures
Perform the following
calculations and report answer with the correct number of
significant figures. You may use a calculator.
- 23 × 11.1
- 45.0 ÷ 7.023
- 3.14 × 95
- (5.67 × 1017) ÷ (4.0 × 1014)
- (7.345 × 10–14) × (1.2 × 1030)
- 4.73 + 2.5
- 1.32 – 0.987
- 5,432 – 347.9
- (5.43 × 1015) + (2.97 × 1015)
- (6.789 × 1021) – (3.2 × 1020)
- (3.79 × 2.3) ÷ 4.678
- (45.60 + 3.1) – 32.103
- (14.67 ÷ 2.34) × 8.7362
- (9.563 + 3.12) × 4.5
- A student made a series of measurements: 6.54 cm, 6.53 cm, 6.55 cm, 6.5 cm. Report the average of these measurements to the correct number of significant figures.
- The distance from the school to a student’s house is 2.7 miles according to their odometer. Convert this distance to inches and report the answer to the correct number of significant figures.
- In the previous question what was the number produced by your calculator? Why is it misleading to write down all the digits displayed there?