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 5.00000008?

Back

9 significant figures.

Front

Round the number 0.010229 to four significant figures.

Back

0.01023.

Front

How many significant figures are in 4.20 cm?

Back

3 significant figures.

Front

How many significant figures are in 0.001 g?

Back

1 significant figure.

Front

How many significant figures are in 2016 m?

Back

4 significant figures.

Front

What is the significance of trailing zeros in a decimal number?

Back

Trailing zeros in a decimal number are considered significant because they indicate precision.

Front

What is the rule for zeros in whole numbers without a decimal point?

Back

In whole numbers without a decimal point, trailing zeros are not considered significant.

Front

How do you round a number to a specific number of significant figures?

Back

Identify the last significant figure you want to keep, look at the next digit, and round up if it is 5 or greater.