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Interpret and represent subtraction stories

Lesson 5 / 10

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Lesson outcome

I can interpret and represent subtraction stories that involve decreasing an amount using the ‘First, then, now’ structure.

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In a ‘First, then, now’ subtraction story, the number at the start of the story is decreased by subtracting a part. When using subtraction to decrease an amount, the number that is decreased must always be represented first. This can be represented with practical equipment and as a bar model or a number line. We can write an equation to match these representations.

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