Lesson Five – Number Reverses
This maths teaching pack for Key Stage Two gets the children to practise using inverse operations to check the addition and subtraction sums for different number calculations.
The class can identify and explain when they might choose to use mental or written methods to complete an addition or subtraction calculation as an inverse operation.
Download this teaching pack including a lesson plan, classroom activities and an interactive presentation to teach the children to practise using inverse operations to check the addition and subtraction sums for different number calculations
Activities in this teaching pack include a set of differentiated worksheets to select and record inverse operations that can be used to check the sums of addition and subtraction calculations. The class can identify when to choose mental or written calculations to complete each inverse operation sum.
The interactive presentation gets the children to explain how to check the sums of addition calculation using subtraction and vice-versa and how to choose the best calculation to complete each sum.
This lesson is part of a maths scheme of work to get the children to identify and model how to solve contextual problems using formal written calculations for addition and subtraction including exchange between place value. There are teaching activities for shared learning, differentiated worksheets to support independent learning and interactive presentations to introduce concepts and key skills.
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