Bạn cần hỏi gì?
Tìm x:
|
x : 2 = 5 × 2 ............................... ................................ |
x : 3 = 45 : 5 ............................... ................................ |
|
x : 4 = 3 × 2 ............................... ................................ |
x : 5 = 3 × 3 ............................... ................................... |
