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 value of the digit in the tenths place in the decimal 3.45?

Back

The value of the digit in the tenths place (4) is 4 tenths or 0.4.

Front

What does the digit 5 represent in the decimal 0.257?

Back

The digit 5 represents five hundredths.

Front

Calculate: 58.90 - 25.00

Back

33.90

Front

Calculate: 6.8 - 2.93

Back

3.87

Front

Calculate the sum: 32.15 + 24.15

Back

56.30

Front

If Lisa has $100 and spends $27.99 and $25.99, how much does she have left?

Back

$46.02

Front

What is the first step in adding decimals?

Back

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