Year 4 maths worksheet: relate addition and subtraction

One of the most important concepts for children to understand in the early years is the relationship between addition and subtraction. Given one set of facts they should be able to deduce several other facts.

For example:

If 40 + 30 = 70 then:

30 + 40 = 70

and

70 – 40 = 30

and

70 – 30 = 40.

This free worksheet look at this relationship.

Relate addition and subtraction (2)

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