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Bibipop1
a fost răspuns

Calculati:a) 2+2•{2+2×(2-2:2 )]}= b)1+2×{3+4 [5-6 (7-8:8)]}= c)(1800-1250):10+220:11 (1200:40-600:15+25)= d ({[1+(777×3):2]+[2-(10-2×2):6]:10}:15=

Răspuns :

a)2+2•{2+2•(2-2:2)}=2+2•{2+2•(2-1)}=
2+2•{2+4}=2+2•6=2+12=14

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