Mai multe operatii
200+100-10
(20+30)x10
500
a+10x10=101
a=1
3x100+0x3
300
100-(1000:10)x0
0
500-a=200
a=300
1000-100x10
0
(209x399x0)+110
110
ax100:3=100
a=3
50:10x20x10
1000
(230+70)x(30:10)
900
(200+400):3+a=210
a=10
900-6x10:10x100
300
(120x10-200):1000
1
800:a+(300:100)=11
a=100