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 many significant figures are in the number 216 m?

Back

3

Front

How many significant figures are in the number 0.010 L?

Back

2

Front

What is the rule for counting significant figures in a number with leading zeros?

Back

Leading zeros (zeros before the first non-zero digit) are not counted as significant figures.

Front

Round the number 1009 to three significant figures.

Back

1010

Front

How many significant figures are in the number 100000000?

Back

1 (unless specified otherwise, trailing zeros in a whole number without a decimal point are not counted as significant figures.)

Front

How many significant figures are in the number 0.012 km?

Back

2

Front

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

Back

Trailing zeros in a decimal number are counted as significant figures.

Front

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

Back

Count all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

What is the rule for counting significant figures in a whole number without a decimal point?

Back

Trailing zeros in a whole number without a decimal point are not considered significant.