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Nkn1
a fost răspuns

a)546+304-(560:7x3+10x27)=
b)(400-375)x25-(808:4+300)=
c) 3x[10:10+2x(2+8-3)]=

Răspuns :

a)546+304-(80×3+270)=546+304-(240+270)=546+304 - 510= 850-510 = 340
b)25×25-(202+300)=625-502=123
c) 3×[1+2×(10-3)]=3×(1+2×7)=3×(1+14)=3×15=45

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