# Significant Figures Worksheet How many significant figures are in ...

## Transcribed Text

Significant Figures Worksheet How many significant figures are in each of the following measurements? 1) 5.40 mL 13) 0.070 g 2) 210 S 14) 0.707 mL 3) 1.000 mL 15) 7070 kg 4) 0.002 g 16) 0.700 g 5) 801.5 g 17) 7.070 kg 6) 1,000 kg 18) 1.02 x 10² L 7) 101.0100 kg 19) 3.4 x 104g 8) 4.53 mL 20) 1.2 X 10³ mm 9) 2.30 g 21) 0.00120 cm 10) 1.02 S 22) 0.0102 mL 11) 4500 g 23) 9.010 x 10-6 S 12) 3200. L 24) 2,370.0 g Round these numbers to 3 significant digits, using scientific notation as necessary. 25) 1,489,311 26) 2.3651 x 10 -3 27) 84,502 28) 0.0011662 29) 0.07799 30) 73.8967 Perform the following calculations. Be sure to report your answer to the correct number of significant figures. 31) 144.3854 + 8.04 - 165.32 + 30.0 = 32) 1 x0.074+2.014= 33) 73.8967 x 9.03 - 875.34 = 34) (410 X 63.91) + (17.9 + 0.002) = 35) 50.31 + 70.408 = 13.38 x 0.018 36) Why are significant figures important when taking data measurements in the laboratory ? 37) The length of a single magnesium ribbon was measured with 2 different rulers. Using Ruler #1 it was 36 millimeters and using ruler #2 it was 36.00 millimeters. Explain the difference between these two measurements.

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