Significant Figures

How far can we estimate a number?

• One digit further than the instrument can go.

• Two digits further than the instrument can go.

• Only what the instrument can measure.

What is the abbreviation for significant figures?

• Sig Figs

• S.F.

• Signif. Figs

• SiFi

Any non-zero value is significant.

• True

• False

Zeroes between non-zero numbers are not significant.

• True

• False

Leading zeroes are significant.

• True

• False

Trailing zeroes are only significant if there is a decimal.

• True

• False

To find the number of sig figs when adding or subtracting, we use the value with the smallest number of _______________.

• Numbers after the decimal

• Significant Figures

• Numbers before the decimal

When multiplying or dividing, our answer will have how many sig figs?

• The same as the number with the lowest sig figs

• The same as the number with the highest sig figs

• A blend of both numbers

• However many I want it to have

How many sig figs are in 0.00004050?

• 2

• 3

• 4

• 9

How many sig figs are in 54,700?

• 3

• 4

• 5

• 2