Bài 1 : Phân tích các số sau theo hai cách ( tách riêng từng chữ số và tách riêng các số có các chữ số chưa biết điền kề 216abc gạch đầu ab103 gạch đầu ab04c1 gạch đầu 1abc035 gạch đầu 3ab23cd gạch đầu 62ab0 gạch đầu Bài 2 : Viết các chũ số sau bằng chữ số La Mã 234;46;23;2022;307;45

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