Sig Figs

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 0.00456?

Back

3 significant figures.

Front

What is the rule for counting significant figures in whole numbers?

Back

In whole numbers, only non-zero digits are significant. Leading zeros are not significant.

Front

How many significant figures does the number 200 have?

Back

1 significant figure (unless specified otherwise, such as 200. which has 3 sig figs).

Front

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

Back

Trailing zeros in a decimal number are significant. For example, 2.300 has 4 significant figures.

Front

How many significant figures are in the measurement 20.0 mL?

Back

3 significant figures.

Front

What is the rule for counting significant figures in decimal numbers?

Back

In decimal numbers, all non-zero digits are significant, and any zeros to the right of a decimal point and after a non-zero digit are also significant.

Front

How many significant figures does the number 10,080 have?

Back

4 significant figures.

Front

What is the significance of zeros in the middle of a number?

Back

Zeros between non-zero digits are always significant. For example, 1002 has 4 significant figures.

Front

How many significant figures are in the number 0.020 mL?

Back

2 significant figures.