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Probabilities that add to 1

One bar for the whole, 1, on every question. Shade what you know, add what you know, take it away from 1, with the frame printed until the last questions of the further practice.

A free key stage 3 and GCSE support probability lesson on probabilities that add to 1, spec code P4. It has a lesson deck to teach from with a visualiser, a worksheet with answers, an exit ticket and an end of unit test.

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