Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal representation of 5/10.

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 6.8 - 2.93?

Back

3.87

Front

If Jeff had $58.90 and withdrew $25.00, how much does he have left?

Back

$33.90

Front

What is the value of 7.05 - 4.6?

Back

2.45

Front

Tony ran 4.8 miles and James ran 2.75 miles. How much farther did Tony run?

Back

2.05 miles

Front

What is the difference between 27.96 and 16.2?

Back

11.76

Front

What is the first step in adding decimals?

Back

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

Front

What is the first step in subtracting decimals?

Back

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