Adding and Subtracting Decimals

Front

What is the difference between 435.2 and 24.55?

Back

410.65

Front

What is 94 - 4.8?

Back

89.2

Front

What is the difference of 9.28 and 0.54?

Back

8.74

Front

If Chicago was predicted to receive 1.254'' of rain and actually received .875'', how far was the prediction off?

Back

.379''

Front

What is the sum of 10.9 hours, 8.6 hours, and 12.4 hours?

Back

31.9 hours

Front

Define decimals.

Back

Decimals are numbers that represent a fraction of ten, using a decimal point to separate the whole number from the fractional part.

Front

What does it mean to add decimals?

Back

Adding decimals means combining two or more decimal numbers to find their total.

Front

What does it mean to subtract decimals?

Back

Subtracting decimals means finding the difference between two decimal numbers.

Front

How do you align decimals when adding or subtracting?

Back

You align the decimal points vertically to ensure that the digits are in the correct place value.

Front

What is the first step in adding or subtracting decimals?

Back

The first step is to line up the decimal points of the numbers.