Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part from the fractional part.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

What is the value of 0.5 in cents?

Back

0.5 dollars is equal to 50 cents.

Front

If you have $6.00 and spend $0.50, how much do you have left?

Back

You have $5.50 left.

Front

What is the difference between 4.03 and 3.96?

Back

The difference is 0.07 minutes.

Front

If Gina scored 9.3 on the vault and her total score was 16.75, how do you find her balance beam score?

Back

Subtract her vault score from her total score: 16.75 - 9.3 = 7.45.

Front

How do you find the total of 2.00 and 1.75?

Back

Add the two numbers: 2.00 + 1.75 = 3.75.

Front

What is the combined weight of 23.7 pounds and 6.912 pounds?

Back

The combined weight is 30.612 pounds.

Front

What is the first step in adding decimals?

Back

The first step is to align the numbers by the decimal point.