Significant Figures Practice (with calculations)

Front

How many significant figures are in the number? 0.003068 m

Back

4 significant figures. Leading zeros are not counted.

Front

How many significant figures are in the number? 2804 m

Back

4 significant figures. All non-zero digits are counted.

Front

What is the correct answer for: 1.31 cm x 2.3 cm

Back

3.0 cm². The answer is rounded to 2 significant figures, based on the least precise measurement.

Front

What is the correct answer for: 12.00 m + 15.001 m = ?

Back

27.00 m. The answer is rounded to 2 decimal places, based on the least precise measurement.

Front

What is the correct answer for: 3.05 + 0.013

Back

3.06. The answer is rounded to 2 decimal places, based on the least precise measurement.

Front

Define significant figures.

Back

Significant figures are the digits in a number that contribute to its precision, including 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 number with a decimal point?

Back

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

Front

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

Back

All non-zero digits are significant, but trailing zeros are not significant unless specified by a decimal point.

Front

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

Back

Identify all non-zero digits, any zeros between them, and trailing zeros in a decimal. Count these to find the total significant figures.

Front

What is the significance of significant figures in calculations?

Back

Significant figures indicate the precision of measurements and ensure that calculations reflect the accuracy of the least precise measurement.