Question

a) Số ?

10cm = ... dm;     1dm = ... cm

b) Tìm trên thước thẳng vạch chỉ 1dm.

c) Vẽ đoạn thẳng AB dài 1dm.

Answer 1

Phương pháp giải

Vận dụng kiến thức 1dm = 10cm để giải các câu hỏi.

Lời giải chi tiết:

a) 10cm = 1dm;     1dm = 10cm

b) Trên thước, vạch chỉ 10cm là vạch chỉ 1dm.

 

c) Học sinh tự vẽ đoạn thẳng 1dm (vẽ từ vạch 0cm đến vạch 10cm)

Answer 2

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