27-09-2017
Mathematics

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What are all these answers

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27-09-2017

21) -9 - 10 = -19 22)-11 + 8 = -3
23) 9 - 9 = 0 24) -1 + 6 = 5
25) - 10 - 7 = -17 26) -4 + 3 = -1
27) 3 - 9 = -6 28) - 1 + 11 = 10
29) - 6 - 1 = -7 30) 11 + -6 = 5

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