Adding and Subtracting decimals

Front

What is a decimal?

Back

A decimal is a way of representing numbers that are not whole, using a 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 sum of 0.5 + 0.3?

Back

0.8

Front

What is the difference of 1.2 - 0.7?

Back

0.5

Front

What does it mean to round a decimal?

Back

Rounding a decimal means adjusting the number to a nearby value that is simpler, often to a certain number of decimal places.

Front

What is 0.75 rounded to the nearest whole number?

Back

1

Front

What is the sum of 2.5 + 3.5?

Back

6.0

Front

What is the difference of 5.5 - 2.2?

Back

3.3

Front

If you have $10.00 and spend $2.50, how much do you have left?

Back

$7.50