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Mathematics, 21.05.2020 00:00 lilakatedancer

Which sum does the model below represent?
+ + + +
- - - - - - -
4+ (-7) = -3
4+ 7 = 11
8+(-3) = 4
11+ (-4) = -3


Which sum does the model below represent? + + + + - - - - - - - 4+ (-7) = -3 4+ 7 = 11 8+(-3) = 4

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Which sum does the model below represent?
+ + + +
- - - - - - -
4+ (-7) = -3
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