Significant Figures

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

Count all non-zero digits, any zeros between significant digits, and trailing zeros in a decimal number. Leading zeros are not counted.

Front

How many significant figures are in the number 0.00400?

Back

3 significant figures.

Front

How many significant figures are in the number 27000000?

Back

2 significant figures.

Front

How many significant figures are in the number 100000000?

Back

1 significant figure.

Front

How many significant figures are in the number 100.00?

Back

5 significant figures.

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

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

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

Back

The result should have the same number of decimal places as the measurement with the least number of decimal places.

Front

How many significant figures are in the number 0.00345?

Back

3 significant figures.