Sig Figs Skills Check

What is 78.5 rounded to one significant figure?

• 79

• 78.5

• 70

• 80

Round 0.010229 to four significant figures

• 1022

• 1023

• 0.01023

• 0.01022

What is 0.658 rounded to 1 significant figure?

• 0

• 0.66

• 0.7

• 0.658

What is 7.555 rounded to two significant figures?

• 7.6

• 7.5

• 70

• 76

• 7.60

Round 52689 to 3 significant figures.

• 526
• 527
• 52600
• 52700

Calculate 12.47 m ÷ 3.2 s and give your answer with the correct number of significant figures.

• 4 m/s
• 3.9 m/s
• 3.90 m/s
• 3.897 m/s

Calculate 7.987 m - 0.54 m and give your answer with the correct number of significant figures.

• 7.45 m
• 7.447 m
• 7.4 m
• 7.5 m

Calculate 923 g ÷ 20312 cm³ and give your answer with the correct number of significant figures.

• 0.04 g/cm³
• 0.045 g/cm³
• 0.0454 g/cm³
• 0.05 g/cm³

Which of the following numbers have four significant figures?

• 56.75 g
• 40.01 g
• 0.6000 g
• all of the choices

Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the correct number of significant figures.

• 10 cm³

• 11.1 cm³

• 11 cm³

• 11. cm³

Answer explanation

Can only have 1 sig fig in your final answer.