Significant Figures Practice (with calculations)

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 part.

Front

How many significant figures are in the number 75,000 m?

Back

2

Front

How many significant figures are in the number 2804 m?

Back

4

Front

How many significant figures are in the number 0.003068 m?

Back

4

Front

What is the rule for counting significant figures in a number with leading zeros?

Back

Leading zeros (zeros before the first non-zero digit) are not counted as significant figures.

Front

What is the rule for counting significant figures in a number with trailing zeros?

Back

Trailing zeros in a number without a decimal point are not significant, but trailing zeros in a decimal number are significant.

Front

What is the correct answer for: 1.31 cm x 2.3 cm?

Back

3.0

Front

What is the correct answer for: 3.05 + 0.013?

Back

3.06

Front

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

Back

The number of significant figures in a measurement is determined by the precision of the measuring instrument and the rules for counting significant figures.

Front

What is the significance of significant figures in calculations?

Back

Significant figures indicate the precision of measurements and ensure that calculations reflect the accuracy of the data used.