Operations with Significant Figures

Which digit is the doubtful figure in the measurement reading of 450 g?

• 4

• 5

• 0

• None

With the rules in significant figures in operations, provide the final answer for this operation: 1.00 cm + 14.000 cm?

• 15.0 cm

• 15.00 cm

• 15.000 cm

• 15.00 cm²

With the rules in significant figures in operations, provide the final answer for this operation: 90.00 g / 3.0 cm³?

• 30 g/cm³

• 30. g/cm³

• 30.0 g/cm³

• 30.00 g/cm³

Select the measurement with the correct number of significant figures.

• 6 cm

• 6.770 cm

• 6.77 cm

• 6.775 cm

Answer the following with the correct number of
significant figures. Watch your units, if applicable!
And, be sure to take into account whether you are
adding/subtraction or multiplying/dividing!
12.011 – 14.6 =

• -2.589

• -2.59

• -2.6

• 2.6

• 2.589

Answer the following with the correct number of significant figures. Watch your units, if applicable! And, be sure to take into account whether you are adding/subtraction or multiplying/dividing! \frac{\left(2.12x10^{-13}\right)\left(3.69x10^{-5}\right)}{\left(2.549x10^{-7}\right)\left(4.865x10^{14}\right)}=

Match the followingMatch the number of Significant figures

• infinite

• 1000.

• 1

• 0.000304

• 2

• 0.0020

• 3

• 10 boxes

• 4

• 1000

Answer explanation

What are significant figures?

• They are the reliably known digits that a measurement contains.

• They are diagrams representing significant atoms and molecules.

• They are measurements which are important to everyday life.

• They are units of measurement in the International System of Units.

Select the measurement with the correct number of significant figures.

• 8.250

• 8.25

• 8.2

• 8

How many significant figures are in the following measurement?

1052.8 km

• 5 significant figures

• 3 significant figures

• 10 significant figures

• 2 significant figures

• 4 significant figures