Mathematics, 12.07.2019 18:00 Ndow2

Which expression shows that 11 + 7 = 5 + 13? a. (5 + 6) + 7 = 5 + (6 + 7) b. 6 + 6 + 6 = 18 c. 5 + 9 + 4 = 6 + 7 + 5 d. (11 + 4) + 3 = (5 + 7) + 6

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Which expression shows that 11 + 7 = 5 + 13? a. (5 + 6) + 7 = 5 + (6 + 7) b. 6 + 6 + 6 = 18 c. 5 +...

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