a)-(6*12-48:4)+(-3)*(14+9)=
b)-12:[-3+(-15):5]=
c)72:3*4:2+72:(3*4):2+72:[3*(4:2)]=
d)2
e)
f)
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a)-(6*12-48:4)+(-3)*(14+9)=
-(72-12)-42-27=-60-42-27=-129
b) -12:[-3+(-15):5]=
-12:(-3-3)=-12:(-6)=2
c) 72:3*4:2+72:(3*4):2+72:[3*(4:2)]=
72:3*4:2+72:12:2+72:(3*2)=72:3*4:2+72:12:2+72:6=48+3+12=63
d) 2 1/3*(7/8+3/2-3/4)=
7/3*13/8=91/24=3 19/24
e) (16/25*125/10-1/3*81/10)*20/3=(40/5-27/10)*20/3=53/10*20/3=106/3=35 i1/3
f) [2 1/2+(0,2+1/3):2/3 //0,4]:3/5=
[2 1/2+ 16/30:2/3 //4/10]3/5=
(2 1/2+8/10:4/10):3/5=
(2 1/2+2):3/5=4 1/2:3/5=7 1/2