C
cara2012
Chắc suất Đại học top - Giữ chỗ ngay!! ĐĂNG BÀI NGAY để cùng trao đổi với các thành viên siêu nhiệt tình & dễ thương trên diễn đàn.
Tìm một số có $3$ chữ số nếu viết thêm chữ số 4 vào chữ số $4$ vào dằng trước , đằng sau số đó ta đều được $2$ số có 4 chữ số như biết số đằng trước hơn số viết dằng sau $2889$ đơn vị
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ai giải được thanks liền [-X
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