PSH Calculating with Sig Figs (all operations)

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 them, and trailing zeros in a decimal number. Leading zeros are not counted.

Front

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

Back

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

Front

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

Back

The result should be rounded to the least number of significant figures of any number in the operation.

Front

How many significant figures are in the number 0.00456?

Back

3 significant figures (4, 5, and 6). Leading zeros are not counted.

Front

How many significant figures are in the number 1001?

Back

4 significant figures (1, 0, 0, and 1 are all counted).

Front

How many significant figures are in the number 2000?

Back

1 significant figure (the trailing zeros are not counted unless specified with a decimal point).

Front

Calculate: 5.67 + 2.1 + 3.456

Back

The answer is 11.2 (rounded to one decimal place, the least in the operation).

Front

Calculate: 7.62 x 6.98 x 3.2645

Back

The answer is 158. (rounded to 3 significant figures, the least in the operation).

Front

What is the result of 10.0 - 0.5?

Back

The answer is 9.5 (rounded to one decimal place).