Question

Tìm một số tự nhiên biết nếu xóa chữ số  7 ở hàng đơn vị của nó thì ta được số mới kém số phải tìm là 1753 đơn vị

Answer 1

so can tim la 1947 

Answer 2

số đó :1947

Answer 3

Quan de

=1947

Answer 4

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Answer 5

vậy số đó là: 1947