= 8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888

1+1=2

k minh nhe

x + 300= 300 + 50
x + 300= 350
        x = 350 - 300
  =>  x = 50

5*5=25

x  + 102 = 200 - 18 

x + 102 = 182

           x = 182 - 102 

           x = 80  

= 3 ơi nhé bạn

396 va 936

Bạn ơi 10 chữ số đầu tiên cộng lại bằng 45 bạn nhé (kể cả số 0)