Add and Subtract 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. For example, 3.14 is a decimal.

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

What is the process for subtracting decimals?

Back

To subtract decimals, align the numbers by the decimal point, subtract as you would whole numbers, and place the decimal point in the difference directly below the other decimal points.

Front

What is the value of 5.66 + 4.25?

Back

9.91

Front

What is the value of 15.07 - 12.2?

Back

2.87

Front

What is the difference between 13.09 miles and 9.84 miles?

Back

3.25 miles

Front

What is 3.3 + 2.22?

Back

5.52

Front

If Jenna buys a bag of gummy bears for $2.74 and pays with $10, how much change does she get back?

Back

$7.26

Front

What does it mean to round a decimal?

Back

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

Front

What is the importance of the decimal point in a number?

Back

The decimal point indicates the separation between the whole number and the fractional part, determining the value of each digit in the number.