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Calculati, respectand ordinea operatiilor si semnificatia parantezelor:
a) 1/8+1/8×(inmultin)4
b) 3/4-3/4
c) 4/3×2/6+2/4×2
d) -2/3×(6/4-5/9)

Răspuns :

Newton30
a) 1/8+1/8x4=1/8+1/2=1+4/2=5/2
b) 3/4-3/4=3-3/4=0
c) 4/3x2/6+2/4x2=4/9+2/2=4/9+1=4+4/9=8/9
d) -2/3x(6/4-5/9)=-2/3x6/4+2/3x5/9= -2/2+6+5/9=-1+11/9=-9+11/9=-20/9

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