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18 January, 11:17

Completeaza cu semnele + - : * semnul * este semnul inmultirii

a) 1 2 3 = - 1

b) - 1 2 3 4=1

c) - 1 2 3 4=-1

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Answers (1)
  1. 18 January, 11:21
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    1*2 - 3=2-3 = - 1

    (-1 + 2+3) : 4 = (5-1) : 4 = 4 : 4 = 1

    (-1+2) * 3 - 4 = - 1
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