Rounding Sig Figs

Front

What is 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 part.

Front

How do you round a number to 1 significant figure?

Back

To round a number to 1 significant figure, identify the first non-zero digit and round the number based on the digit immediately following it.

Front

Round 432 to 1 significant figure.

Back

400

Front

How do you round a number in scientific notation to significant figures?

Back

When rounding a number in scientific notation, focus on the digits in the coefficient. Round the coefficient to the desired number of significant figures.

Front

Round 3.695 x 10^5 to 3 significant figures.

Back

3.70 x 10^5

Front

What is the rule for rounding numbers?

Back

If the digit to the right of the rounding digit is 5 or greater, round up. If it is less than 5, round down.

Front

Round 34,243 to 1 significant figure.

Back

30,000

Front

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

Back

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

Front

Round 432 to 2 significant figures.

Back

430

Front

Round 373,403 to 2 significant figures.

Back

370,000