Significant Figures Worksheet with Answer Key

What's on the worksheet

1. Give the number of significant figures in each reading:
   3.040 m0.0905 g7.10 \times 10^{-3}\text{ kg}508 mL0.30 s
2. Round each number to the number of significant figures given:
   8.4362 (3)0.0059971 (2)395,210 (2)19.96 (3)0.80455 (4)
3. Give the size of each tool's smallest step, with its unit:
4. Find the total area of 24 solar panels to an honest number of significant figures.
5. Owen and Layla record the same shelf as 1.2 m and 1.20 m: are the records the same?
6. Count significant figures in the two records of each measurement, and compare them:
7. Word problem: the total weight of Hannah's suitcase and camera bag.
8. Find the mass of one coin from a tin of 200 coins.
9. Explain what is wrong with Kevin's report of a poster's area.