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 many significant figures are in the number 1.2?

Back

2 significant figures.

Front

How many significant figures are in the number 100?

Back

1 significant figure (if no decimal point is present).

Front

How many significant figures are in the number 5.00?

Back

3 significant figures.

Front

How many significant figures are in the number 800,050,000?

Back

5 significant figures (the zeros are significant because they are between non-zero digits).

Front

How many significant figures are in the number 3401?

Back

4 significant figures.

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; leading zeros are not significant.

Front

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

Back

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

Front

What is the significance of significant figures in scientific measurements?

Back

Significant figures indicate the precision of a measurement and help communicate the uncertainty in the data.