Year 3

Number bonds

Now try-



How to find number bonds up to 100

To find a missing number bond to 100, you can use mental partitioning.

Resources for physically adding numbers together to make 20 could include: Cuisinaire rods, Numicon, Base 10 or simply use cubes or counters.

 Try checking your answers with a calculator.


Government guidelines (Year 3)

      Pupils should be taught to:

  • Add and subtract numbers mnentally, including

    • a three-digit number and ones
    • a three-digit number and tens
    • a three-digit number and hundreds

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Number bonds worksheets - Year 2 Primary maths resources, activities and worksheets

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Number Bonds up to 100







Complete these number bonds in your head