Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part 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, 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 sum of 1.2 and 3.4?

Back

The sum of 1.2 and 3.4 is 4.6.

Front

What is the difference between 5.5 and 2.2?

Back

The difference between 5.5 and 2.2 is 3.3.

Front

How do you round 2.67 to the nearest whole number?

Back

2.67 rounded to the nearest whole number is 3.

Front

What is the result of 7.9 - 3.47?

Back

The result of 7.9 - 3.47 is 4.43.

Front

What is the result of 7.05 - 4.6?

Back

The result of 7.05 - 4.6 is 2.45.

Front

If Chicago was predicted to receive 1.254'' of rain and actually received .875'', how far was the prediction off?

Back

The prediction was off by .379''.