Addition is one of the four basic operations in mathematics. When two (or more) numbers are added together, the result is the total (or sum) of those numbers.

Counting is a type of addition, as you count up you add one more each time.

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## Resources

• Our huge Addition Pack is full of resources to help children master addition.

• The plus sign (+) has been used since the 14th century.
• If you add two odd numbers together, you always get an even number.
• The sum of any two numbers is always the same. For example. 2 + 3 will always equal 5.
• Before the + sign was used, people used to write out their addition calculations in words.
• Humans have used addition for at least 6,000 years.

## Videos

Rodd practises adding one and six together.

Running time: 6:44

#### Adding and subtracting using mental methods

A great video for children learning to use mental addition and subtraction methods for four and five digit numbers.

Running time: 5:19

A great explainer video, showing how to complete column addition calculations.

Running time: 3:37

A catchy song to help children add 1.

Running time: 3:19

## Books

##### One Hundred Hungry Ants

Explore some different ways to make 100 in this charming book.

##### Ten Flashing Fireflies

This story reinforces number bonds to ten.

##### 12 Ways to Get to 11

A lovely book that shows 12 ways to get to 11!

##### Addition + Subtraction: 100 Practice Pages

Lots of practice calculations for younger children.

Are you teaching your children about other topics? Explore our full collection of guides!