GRADE 9 CHEMISTRY REVIEW

Which numbers has three significant figures?

• 101 feet

• 1014 miles

• 1000 yards

• all of the choices

How many significant figures does the following number have: 0.002040

• 6

• 4

• 3

• 2

How many significant figures does the following number have: 0.998005

• 5

• 6

• 9

• 10

Round 0.010229 to four significant figures.

• 1022

• 0.01023

• 0.01022

• 1023

What is 0.658 rounded to 1 significant figure?

• 0.7

• 0.66

• 0.658

How many significant figures does the following number have: 1740200

• 4

• 3

• 7

• 5

Calculate 12.34 + 1.234 + 0.1234 and give your answer

with the correct number of significant figures.

• 13.6974

• 13.70

• 13.697

• 13.7

Calculate 1.23 m x 0.89 m and give your answer

with the correct number of significant figures.

• 1.1 m²

• 1.0 m²

• 1.095 m²

• 1.0947 m²

Has definite shape and volume

• solid

• liquid

• gas

Has no definite shape but has definite volume

• solid

• liquid

• gas