Subtraction
This section includes free printable worksheets, tables and flashcards for practicing subtraction with whole numbers. As with the Addition section, there are also online flashcards that randomly ask subtraction questions.
Use the links above or the menu options at the top to select the resources that you need.
Subtracting with regrouping
Help your child to understand the concept of regrouping when subtracting numbers. Work through the illustrated example to help with this.
Recap: Base Ten Number Systems
We use the base ten number system to write numbers with each place having a value; ones, tens, hundreds, thousands, and so on.
When subtracting numbers we often have to split-up these groups to help us to do the subtraction. The example below shows this.
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| Start with the ones. 2 - 7 can't be done. We're trying to take away more ones than we have. We need more ones! | Let's take 1 of our tens and split it into 10 ones. We've now got 12 ones. We've also got 1 less ten. | We can now do the subtraction: 12 - 7 = 5 ones 3 - 2 = 1 ten |
Subtraction Games
You will find some subtraction games here alongside some games on addition as well.
Help with Subtraction
The National
Library of Virtual Manipulatives
has
many excellent resources including these Base
Blocks Subtraction that
you and your child can work with to help grasp the concept of whole
number subtraction, including regrouping, with the base-ten number
system. Read the instructions carefully to ensure you get maximum
benefit from these very good resources.
Note: If you are an educator and would like to use these online flashcards on your site, then you are free to get them from the HelpingWithMath.com Download Place.