significant figures and 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 portion.

Front

How do you determine the number of significant figures 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

Calculate 345.009 g - 23.009 g and give your answer with the appropriate number of significant figures.

Back

322.000 g

Front

What is the result of 7.8 x 5.501 with the correct number of significant figures?

Back

43

Front

Calculate 5.50 cm + 5.50 cm and give your answer with the appropriate number of significant figures.

Back

11.00 cm

Front

How many significant figures are in the measurement 170.040 km?

Back

Six

Front

Calculate 12.34 + 1.234 + 0.1234 and give your answer with the appropriate number of significant figures.

Back

13.70

Front

What is the rule for addition and subtraction regarding significant figures?

Back

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

Front

What is the rule for multiplication and division regarding significant figures?

Back

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

Front

What is an example of a number with three significant figures?

Back

123.