saintshockey saintshockey

13-10-2015
Mathematics

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Shelley spent 17 minutes washing. She 38 minutes cleaning her room. Explain how you can use mental math to find how long Shelley spent on the two task

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xueliweng1129 xueliweng1129

13-10-2015

you can just add 7+8=15 and 10 + 30 = 40 and add 40 + 15

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