Measurement and 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 them, and trailing zeros in a decimal number. Leading zeros are not counted.

Front

Round 0.010229 to four significant figures.

Back

0.01023

Front

When adding or subtracting, how do you determine the number of significant figures in the result?

Back

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

Front

Solve & round to correct significant figures: 1145.678 + 4.56 + 623.9789 + 78.1 = ?

Back

1852.3

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 1.23 m x 0.89 m and give your answer with the correct number of significant figures.

Back

1.1 m²

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

How many significant figures does the number 0.998005 have?

Back

6

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.