Add and Subtract Decimals

Front

What is the sum of 91.55 and 7.6?

Back

99.15

Front

What is the sum of 3.3 and 2.22?

Back

5.52

Front

What is the difference when you subtract 2.33 from 6.7?

Back

4.37

Front

What is the difference when you subtract 4.3 from 7.2?

Back

2.9

Front

What is the difference when you subtract 3.25 from 9.74?

Back

6.49

Front

How do you align decimal points when adding or subtracting?

Back

Make sure the decimal points are lined up vertically before performing the operation.

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten.

Front

What is the place value of the digit 5 in 0.75?

Back

The place value of 5 in 0.75 is in the hundredths place.

Front

What is the first step in adding decimals?

Back

Line up the decimal points.

Front

What do you do if there are different numbers of decimal places in the numbers you are adding or subtracting?

Back

Add zeros to the end of the shorter number to make the decimal places equal.