Significant Figures in Numbers

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

How do you determine the number of significant figures in a number?

Back

To determine significant figures, count all non-zero digits, any zeros between them, and trailing zeros in a decimal number. Leading zeros are not counted.

Front

Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the correct number of significant figures.

Back

10 cm³

Front

How many significant figures does the number 0.002040 have?

Back

4

Front

Solve: 1.3562 mL / 14.32 g. Round using SigFig math rules.

Back

0.09471 mL/g

Front

Solve and give your answer with the correct number of significant figures: 24.28 + 12.5.

Back

36.8

Front

How many significant figures does the number 100.00210 have?

Back

8

Front

What is the rule for multiplication and division regarding significant figures?

Back

The result should have the same number of significant figures as the measurement with the least number of significant figures.

Front

What is the rule for addition and subtraction regarding significant figures?

Back

The result should be rounded to the least precise decimal place of any number in the operation.

Front

What are leading zeros?

Back

Leading zeros are zeros that precede all non-zero digits in a number. They are not counted as significant figures.