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 0.456?

Back

3

Front

How many significant figures does the number 0.002040 have?

Back

4

Front

How many significant figures does the number 0.998005 have?

Back

6

Front

How many significant figures are in the number 56.040?

Back

5

Front

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

Back

In whole numbers, all non-zero digits are significant, and any zeros at the end of the number are significant only if there is a decimal point.

Front

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

Back

In decimal numbers, all non-zero digits are significant, and leading zeros (zeros before the first non-zero digit) are not significant.

Front

Round the number 0.010229 to four significant figures.

Back

0.01023

Front

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

Back

Trailing zeros in a decimal number are significant because they indicate precision.

Front

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

Back

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