6 Calculează respectând ordinea efectuării operatiilor.
a) 25 (160 - 3 x 5) - 8+ (24 + 6:6);
c) 4 X4:8×[30+ (64:8:2-1)] - 10;
b) 12 x 10 : 6-(200 - 20): 9+36:4 - 2;
d) 9+ (9 X 9:9-9) + 220 - 20 x 0;
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a) 25(160-3*5)-8+(24+6:6)=25(160-15)-8+(24+1)=25*145-8+25=3625-33=3592
b)4*4:8*[30+(64:8:2-1)]-10=16:8*[30+(8:2-1)]-10=2*(30+3)-10=2*33-10=66-10=56
c)12*10:6-(200-20):9+36:4-2=120:6-180:9+9-2=20-20+9-2=7
d)9+(9*9:9-9)+220-20*0=9+(81:9-9)+220=9+(9-9)+220=9+220=229