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 100.00?

Back

5 significant figures.

Front

Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the correct number of significant figures.

Back

10 cm³.

Front

How many significant figures are in the number 5.00000008?

Back

9 significant figures.

Front

Which of the following has one significant figure? 100 cm, 0.0001 cm, 2 cm, 2.00 cm

Back

100 cm, 0.0001 cm, and 2 cm have one significant figure; 2.00 cm has three significant figures.

Front

Calculate 7.987 m - 0.54 m and give your answer with the correct number of significant figures.

Back

7.45 m.

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

Only the non-zero digits are significant; trailing zeros are not significant.

Front

How many significant figures are in the number 0.00456?

Back

3 significant figures.

Front

What is the significance of leading zeros in a number?

Back

Leading zeros are not significant; they only serve as placeholders.