Răspuns:
1=fals
2=adevărat
3=adevărat
4=fals
5*7+8*9+8*6+4
35+72+48=155 F
100-9*5+4*0-29
100-45-29
100-74=26 A
5*8*2*10*0
40*20*0
800*0=0 A
4*8+9*0+10*6-3*1
32+0+60-3
32+57
89 F
