Sig figs and Scientific Notation

Front

What are significant figures (sig figs)?

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 sig figs in a measurement?

Back

Count all non-zero digits, any zeros between them, and trailing zeros in a decimal number. Leading zeros are not counted.

Front

Round the number 72,100 to 1 significant figure.

Back

70,000

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.

Front

Express 4.96 x 10^-3 in decimal notation.

Back

0.00496

Front

Express 18,000,000 in scientific notation.

Back

1.8 x 10^7

Front

What is the rule for multiplying and dividing with sig figs?

Back

The result should have the same number of significant figures as the measurement with the least number of sig figs.

Front

What is the rule for adding and subtracting with sig figs?

Back

The result should be rounded to the least number of decimal places of any number in the operation.

Front

How many sig figs are in the measurement 0.036653 m?

Back

5

Front

What is the scientific notation for the number 0.000496?

Back

4.96 x 10^-4