Significant Figures Practice

How many significant figures are in the number? 2804 m

• 3

• 4

• 5

• unknown

How many significant figures are in the number? 75,000 m

• 2

• 3

• 5

• unknown

How many significant figures are in the number? 4.06 x 10^-5 m

• 3

• 7

• 5

• unknown

What is the correct answer for: 12.00 m +15.001m =

• 27.001 m

• 27.00 m

• 27.0 m

• 27 m

What is the correct answer for: 1.31 cm x 2.3 cm

• 3.013 square cm

• 3.01 square cm

• 3.02 square cm

• 3.0 square cm

Give the answer to the correct number of significant figures to

3.419 + 3.912 + 7.0518 + 0.00013

• 14.383

• 14.382

• 14.3829

• 14.38293

Give the answer to the correct number of significant figures to

145.63 - 28.9

• 116.73

• 116.7

• 116.70

• 117

Give the answer to the correct number of significant figures to

247.89 ÷ 43.5

• 5.70

• 5.7

• 5.699

• 5.69

Express 23400 in proper scientific notation. 

• 2.34 x 10⁴
• 2.3 x 10³
• 2.30 x 10⁵
• 2.34 x 10³

Significant figures are a way to show accuracy in a measurement.

• True

• False