7,6 hm2 = ..... dam2

0,17 dam2 = ...... m2

8,9 hm2 = ..... dam2

0,21 hm2 = ..21.... dam2

15,2 m2 = ...1520.. dm2

1,107 dm2 = ...11070.. mm2

0,321 dm2 = ..32,1... cm2

1,9 m2 = ...190.. dm2

0,821 km2 = ...8210... dam2

0,01 dam2

0,04 dam2

0,38 dam2

0,01 hm2

0,07 hm2

0,52 hm2

1m2= 1/ 100dam2

4m2= 4/ 100dam2

38m2= 38/ 100dam2

1dam2= 1/ 100hm2

7dam2= 7/ 100hm2

52dam2= 52/ 100hm2

1m²=1\100dam²                                  4m²=4\100dam²

38m²=38\100dam²                              1dam²=1\100hm²

7dam²=7\100hm2                         52dam²=52\100hm²

1 m2 = 0.01 dam2

38 m2 = 0.38 dam2

7 dam2 = 0.07 hm2

4 m2 = 0.04 dam2

1 dam2 = 0.01 hm2

52 dam2 = 0.52 hm2

Viết phân số thích hợp vào chỗ chấm:

1 m 2   =   1 100 d a m 2           1 d a m 2   =   1 100 h m 2

4 m 2   = 4 100   d a m 2       7 d a m 2   = 7 100   h m 2

38 m 2   = 38 100 d a m 2         52 d a m 2   = 52 100 h m 2

1/315

2/0,012

3/0,57

4/12

3,15 m = 315 cm

1,2 cm = 0,012 m

5,7 kg = 0,057 tạ

1,2 hg = 0,12 kg

50,2 hg = 5,02 kg

9,2 km² = 920 hm²

7,6 hm² = 760 dam²

0,17 dam² = 17 m²

8,9 hm² = 890 dam² 

7218m² = 7dam² 218m²

16823m² = 16hm² 823m²

405dam² = 4hm² 5dam²

1 . 1412dm^2

2. 705 m^2

3. 1927 dam^2

4.72 dam^2 18 m^2

5. 168 hm^2  23 m^2

6. 4 hm^2 05dam^2

1m2 =  dam2
36m2 =  dam2
73dam2 =  hm2
8m2 =  dam2
5dam2 =  hm2
66dam2 =  hm2