Question

1. Viết số thích hợp vào chỗ chấm : 28 cm = ........... mm 312m = ...........dm 3000cm = .....m 730cm = .......dam 105dm = ............cm 15km = ............ m 4500m = ..... hm 18000m = ..... km 7m 25 cm = .............. cm 165 dm = ........ m .......... dm 2km 58 m = .................. m 2080 m = ............ km .......... m

Answer 1

280mm

3120dm

30m

 0,75dam

1050cm

15000m

45hm

18km

725cm

1m65dm

5058m

2km80m

Answer 2

28 cm = 280 mm

312 m = 312 dm

3000 cm = 30 m

730 cm = \(\frac{730}{1000}\)dam

105 dm = 1050 cm

15 km = 15000 m

4500 m = 45 hm

18000 m = 18 km

7 m 25 cm = 725 cm

165 dm =16 \(\frac{5}{10}\)m

Answer 3

1. Viết số thích hợp vào chỗ chấm : 28 cm = 280mm 312m = 31,2.dm 3000cm = ..30m 730cm = ..0,73...dam 105dm = .....1050.......cm 15km =15000. m 4500m = .45. hm 18000m = ..18. km 7m 25 cm = ...725........ cm 165 dm = ..16m ........5.. dm 2km 58 m = ....2058........ m 2080 m = .........2.. km ..80...... m

Answer 4

là 

28 cm = 280 mm

312 m = 312 dm

3000 cm = 30 m

730 cm = dam

105 dm = 1050 cm

15 km = 15000 m

4500 m = 45 hm

18000 m = 18 km

28 cm = 280 mm

312 m = 312 dm

3000 cm = 30 m

730 cm = dam

105 dm = 1050 cm

15 km = 15000 m

4500 m = 45 hm

18000 m = 18 km