QUESTÃO 18
Observe as igualdades:
1) 6 - (-1) = + 7
II) - 30 - (-1) = - 31
III) 40 -...
Mathematics, 12.02.2021 15:00 milkshakegrande101
QUESTÃO 18
Observe as igualdades:
1) 6 - (-1) = + 7
II) - 30 - (-1) = - 31
III) 40 - 50 = -(40 - 50)
IV)-7-(-7) = 0
Quantas delas são verdadeiras?
a) 0
b) 1
c) 2
d) 3
e) 4
Answers: 2
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