This problem is useful for providing an interesting way of practising simple addition and subtraction. It can also be used to learn more about the rules for adding odd and even numbers. The problem requires a trial and improvement approach, and it is worthwile encouraging learners to articulate their method, so that it can be compared with someone else's.
Strand: Number
Strand unit: Counting & Numeration
Content objective: This resource should enable a child to:
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