Rounding Significant Figures

Front

What is rounding significant figures?

Back

Rounding significant figures is the process of reducing the number of digits in a number while maintaining its value to a certain degree of precision.

Front

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

Back

Significant figures are determined by counting all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

What is the rule for rounding up?

Back

If the digit to the right of the last significant figure is 5 or greater, round up the last significant figure by one.

Front

What is the rule for rounding down?

Back

If the digit to the right of the last significant figure is less than 5, do not change the last significant figure.

Front

Round 7.555 to two significant figures.

Back

7.6

Front

Round 8291 to one significant figure.

Back

8000

Front

Round 888 to the nearest hundred.

Back

900

Front

Round 0.010229 to four significant figures.

Back

0.01023

Front

What is the first significant figure in 23.45?

Back

2

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.