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25-10-2018
Mathematics

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My childs teacher marked 10 and 11 wrong? But I think my child choose the right answer. What do you think?

My childs teacher marked 10 and 11 wrong But I think my child choose the right answer What do you think class=

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wegnerkolmp2741o wegnerkolmp2741o

25-10-2018

commutative property of addition a+b=b+a

Choice D

53+9 = 9+53

11. 1st week: 345 bought lunch

2nd week :345-23= 322 bought lunch

total in 1st two weeks 345+322 = 667

Choice C

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