người chiến thắng là bạn có hình doraemon
2x1/5=0,4
vì sao:
một câu hỏi rất hay
2x1/5=2/5
gì nữa
2:5=0,4
nhưng sao có dấu phẩy
vì đó là số thập phân
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhuuuuuuuuuuuuuuuuuuuuuuuhuhuhuhuhuhuhuhuuhuhuuhuhuhuuhuhhuuhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
mình và bạn lê đức anh có k nè hihi
mình cho mọi người sẽ cố gắng lần sau
mlem mlem