santinomiguel151 santinomiguel151

16-09-2016
Mathematics

contestada

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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03-10-2016

you can first add 7 plus 8 and equals 15 so remember the 5
3 plus 1 +1(from 15)

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