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 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 value of 0.1 in cents?

Back

0.1 in cents is 10 cents.

Front

What is the sum of 2.5 and 3.7?

Back

The sum of 2.5 and 3.7 is 6.2.

Front

What is the difference between 5.5 and 2.3?

Back

The difference between 5.5 and 2.3 is 3.2.

Front

How do you round 4.67 to the nearest whole number?

Back

4.67 rounded to the nearest whole number is 5.

Front

What is 0.75 as a fraction?

Back

0.75 as a fraction is 75/100, which simplifies to 3/4.

Front

If Kelly has $20 and spends $2.15, how much does she have left?

Back

Kelly has $17.85 left after spending $2.15.

Front

What is 94 - 4.8?

Back

94 - 4.8 equals 89.2.