2.1 Mental Strategies for Addition

Unit Objectives

• We are learning to explore and choose appropriate mental addition strategies to solve addition problems.

Success Criteria

• I can choose appropriate strategies based on the problem to add numbers in my head.

• I can use and extend number facts to solve addition problems.

• I can use my understanding of place value to help solve mental addition problem.

Learning Objective

• To rearrange numbers to make friends of 10 so that we can add more easily.

Success Criteria

• I can recognise number pairs that make 10.

• I can rearrange numbers to make multiples of 10 when adding.

Examples

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Learning Objective

• To add and subtract odd and even numbers and describe the patterns we notice.

Success Criteria

• Predict whether the answer will be odd or even when I add or subtract numbers.

• Explain the patterns when adding and subtracting.

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