ê k mìn đik
mìn chỉ cho
ê k mìn đik
mìn chỉ cho
18 - 35 + 98 - 97 + 54 - 98 - 98 + 65 - 89 + 12 - 43 + 89 + 98
54-45-34-43-23-32
Tìm x
x+54=54-x
x-43=43-x
87+65+54+76=
65+46+35+54=
1+2+3+4+5+6+7+7+8+9+10+11+12+13+14+45+15+16+17+18+19+20+21-56+56+48+52+78+84+54+2545+455+1454+1256-23+56+586=
59*58-51+43*49+54
100 + 54 + 65 + 66 + 55 + 10 + 6