Find an unknown addend

In this lesson, we will be finding an unknown addend when the sum is changed.

Find an unknown addend

In this lesson, we will be finding an unknown addend when the sum is changed.

Lesson details

Key learning points

  1. In this lesson, we will be finding an unknown addend when the sum is changed.

Licence

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Lesson appears in

UnitMaths / Extending calculation strategies and additive reasoning