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.

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 word form for 0.75?

Back

seventy-five hundredths

Front

What is the value of the digit 5 in the number 3.45?

Back

The value of the digit 5 is five hundredths.

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 of 1.25 and 2.75?

Back

The total is 4.00.

Front

What is the difference between 5.5 and 2.3?

Back

The difference is 3.2.

Front

How do you round 3.678 to the nearest hundredth?

Back

3.68 (look at the thousandths place, which is 8, so round up).

Front

What is the sum of 0.9 and 0.6?

Back

The sum is 1.5.