Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.14 is a decimal.

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 fraction form?

Back

0.5 is equivalent to 1/2.

Front

What is the first step in solving a decimal addition problem?

Back

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

Front

What is the first step in solving a decimal subtraction problem?

Back

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

Front

Calculate: 2.5 + 3.75 = ?

Back

2.5 + 3.75 = 6.25.

Front

Calculate: 5.6 - 2.3 = ?

Back

5.6 - 2.3 = 3.3.

Front

What is the result of 1.2 + 0.8?

Back

1.2 + 0.8 = 2.0.

Front

What is the result of 10.5 - 4.2?

Back

10.5 - 4.2 = 6.3.