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3 January, 11:23

Shelley spent 17minutes washing the dishes. she spent 38minutes cleaning her room. explain how you can use mental math to find how long shelley spent on the two tasks?

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  1. 3 January, 11:28
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    You can first add 7 plus 8 and equals 15 so remember the 5

    3 plus 1 + 1 (from 15)
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