Unit 1 Practice Review

How many significant figures are in this number: 0.00258

• 2

• 3

• 4

• 5

How many significant figures are in this number: 47.00

• 2

• 3

• 4

• 5

How many significant figures are in this number: 250,000

• 2

• 3

• 5

• 6

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

• 3

• 7

• 5

• unknown

What is the correct answer to: 6.201 cm + 7.4 cm + 0.68 cm +12.0 cm =

• 26.281

• 26.28

• 26.2

• 26.3

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

• 3.013

• 3.01

• 3.02

• 3.0

What is the correct answer for: 20.2 cm ÷ 7.41 s

• 2.726045884

• 2.72604

• 2.73

• 2.7

What is 78.5 rounded to one significant figure?

• 79

• 78.5

• 70

• 80

• 78

Round 1,296,717 to 3 significant figures

• 1,290,000

• 1,296,000

• 1,297,000

• 1,300,000

• 1.30 x 10⁶

Round 0.010229 to four significant figures

• 1022

• 1023

• 0.01023

• 0.01022