Add, Subtract Decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It represents a part of a whole number, using a dot (decimal point) to separate the whole number 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. Place 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. Place the decimal point in the difference directly below the other decimal points.

Front

What is the sum of 5.75 and 3.75?

Back

9.50

Front

What is the difference between 5.257 and 2.393?

Back

2.864

Front

What is the total of 10.9, 8.6, and 12.4?

Back

31.9 hours

Front

If Mikey spends $5.60 on a hot dog meal and $8.50 on a pizza meal, what is the total amount spent?

Back

$14.10

Front

What is the sum of 33.21 and 6.96?

Back

40.17

Front

What is the first step in adding decimals?

Back

Align the numbers by the decimal point.

Front

What do you do if a decimal has different numbers of digits after the decimal point?

Back

Add zeros to the shorter decimal to make them the same length before adding.