saintshockey saintshockey

12-10-2015
Mathematics

Answered

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

12-10-2015

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

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