Significant Figures and Calculations

Calculate 5.50 cm + 5.50 cm and give your answer with the appropriate number of significant figures.

• 11 cm

• 11.0 cm

• 11.00 cm

• 11.000 cm

How many significant figures will be in the answer to the following question: 7.62 x 6.98 x 3.2645

Calculate 12.34 + 1.234 + 0.1234

• 13.6974

• 13.697

• 13.70

• 13.7

Calculate 345.009 g - 23.009 g and give your answer with the appropriate number of significant figures.

• 322.00 g

• 322 g

• 322.000 g

• 322

How many significant digits in 1200000000

The number of significant figures in the measurement 170.040 km is:

• three

• four

• five

• six

How many significant digits in 20.0?

• 1

• 2

• 3

• 4

7.8 x 5.501

• 42

• 42.908

• 42.91

• 42.9

How many significant digits in 4.732?

• 1

• 2

• 3

• 4

What is 78.5 rounded to one significant figure?

• 79

• 78.5

• 70

• 80