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 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 a decimal number. Leading zeros are not counted.

Front

How many significant figures does the number 1.2500 x 10^3 have?

Back

5

Front

How many significant figures does the number 100.00210 have?

Back

8

Front

How many significant figures does the number 0.00345 have?

Back

3

Front

What is 98.907 rounded to 1 significant figure?

Back

1 x 10^2

Front

How many significant figures does the number 0.00204 have?

Back

3

Front

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

Back

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

Front

What is the significance of leading zeros in a number?

Back

Leading zeros are not significant; they only serve as placeholders.

Front

How do you round a number to a specific number of significant figures?

Back

Identify the last significant figure you want to keep, look at the next digit to decide whether to round up or down.