Question

Destaceți parantezele, apoi efectuați:
a) 43–7+2)+(-5+2)+(-9+1);
b) (-5+3) -2+6–1)+(-3);
c) 54-3)+7=(-2+3-5)(-1);
d) -(5+3–2 -8)+(-84-6);
e) 347–3–2+1)(-5+3)+(-9);
f) 12+(-7)+(3+2)-9+5–3).
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Answer 1

Răspuns:

a) (36+2)-3-8

38-3-8=27

b)-2+3-3=-2

c)51+7=+4

58 ≠4

d)-5-3+2+8+(-90)

2-90=-88

e)343-2-9=332

f)5+5-4-3=

10-7=3

COROANĂ???