Save guides, add subjects and pick up where you left off with your BBC account. You can add or subtract numbers in lots of different ways. You can use number lines, number bonds, fact families, 10 ...

There are lots of different tools that help you to do mental addition and subtraction. Remember, it doesn't have to be done entirely in your head, you can still use a pencil and paper to help.

It states students should be able to: Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 ...