Significant Figures Worksheet

The digits in a number used to show its place value and help perform long division.

The digits in a measurement that reflect the precision of the instrument and should be preserved to communicate measurement reliability.

The digits in any whole number that determine whether rounding is needed for addition problems.

The digits in a calculation that must always include all zeros regardless of context.

3

4

5

6

3

4

5

6

TRUE

False

$$0.0450$$

$$4500$$

$$4.50 \times 10^{2}$$

$$0.0045$$

1

2

3

4

0

1

2

3

TRUE

False

Addition

Subtraction

Multiplication

Division

Round the result to the least number of decimal places among the original measurements.

Round the result to the least number of significant figures among the original measurements.

Round the result to the greatest number of decimal places among the original measurements.

Do not round; keep all digits from each measurement.