Sig Fig Practice

Front

What are significant figures?

Back

Significant figures (sig figs) 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 the decimal portion. Leading zeros are not counted.

Front

How many sig figs are in the number 0.00400?

Back

3 sig figs.

Front

How many sig figs are in the number 100000000?

Back

1 sig fig.

Front

How many sig figs are in the number 0.000008?

Back

1 sig fig.

Front

What is the rule for rounding to significant figures?

Back

If the digit to the right of the last significant figure is less than 5, round down. If it is 5 or greater, round up.

Front

Round the number 1009 to three significant figures.

Back

1010.

Front

When multiplying or dividing, how do you determine the number of significant figures in the result?

Back

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

Front

Calculate 12.47 m ÷ 3.2 s and give your answer with the correct number of significant figures.

Back

3.9 m/s.

Front

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

Back

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