Add and Subtract 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 that represents 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 sum of 2.45 and 3.79?

Back

The sum is 6.24.

Front

What is the difference between 9.74 and 3.25?

Back

The difference is 6.49.

Front

If you buy items costing $2.45, $3.79, and $1.55, how much do you spend in total?

Back

You spend a total of $7.79.

Front

What is 6.7 - 2.33?

Back

The result is 4.37.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

What is the total weight of 52.93 oz and 79.6 oz?

Back

The total weight is 132.53 ounces.

Front

If a movie ticket costs $3.00 and you buy two, how much do you spend on tickets?

Back

You spend $6.00 on tickets.