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Mathematical unit conversion in the fourth grade of primary school
480m = km 1km = m。

0.2 m2 = square decimeter 1 m2 = square decimeter.

78g = kg 1 kg = g.

3.46 tons = kg 1 ton = kg

150cm = 1 m = cm

0.07 l = ml 1 l = ml.

200 decimeters = square centimeters

70,000 square centimeters = square decimeters

620,000 square centimeters = square meters

40000000000 square decimeter = square kilometer

960000000 square meters = square kilometers

18 square meter = square decimeter

34 square kilometers = square meters

9 square meters = square centimeters

5 square kilometers = square meters

3 square meters = square decimeter

1kg = g, 1t = kg。

1 m = decimeter = cm = mm, 1 km = m.

1 m2 = square decimeter = square centimeter = square millimeter

1 m3 = cubic decimeter = cubic centimeter = cubic millimeter

1 hour = minutes

1 min = sec

60 mm = () cm

2 tons = () kg

8 meters = () decimeter

5000 g = () kg

3 kg = () grams

7 km = () meters

400 cm = () meters

6000 kg = () tons

3 tons 500 kg = () kg

3600 km = () km () m

1 ton -320kg = () kg

480mm+520mm = () mm = () m。

7008kg = () tons () kg

4 m 7 cm = () cm

1m-54cm = () cm

830g+170g = () g = () kg

0. 15kg =()g 3.00 1t =()t()kg。

3.7 square decimeter = () square millimeter 5.80 yuan = () yuan () angle.

() decimeter = 1.5m () ton () kg = 4.08t

5 10/0m = () km 5m16cm = () m.

5 kg 700g = () kg 0.95m = () cm。

4700 m = () km 3650 g = () kg

40.06 tons = () kg 1.4 square meters = () square decimeter.

360m2 = () hectares 7.05m = () meters () centimeters.

5.45 kg = () kg () g

3 km 50 m = () km () h = 30 minutes.

3 kg 500 g = () kg () hour = 2: 45.

2.78 tons = () tons () kg

0.25 hours = () minutes

504 cm = () meters

4.2m = () m () cm

10 meter 7 decimeter = () meter

0.06 km2 = () hectares

9 kg 750 g = () kg

8.04 tons = () tons () kg

6.24 square meters = () square decimeter

5 meters = () decimeter

50,000m = () km

6 yuan 8 jiao = () yuan.

50 cm = () meters

5 cm = () meters

280 g = () kg

28 g = () kg

7 tons 900 kg = () tons

7 tons 90 kg = () tons

28 decimeters = () meters

28 cm = () meters

3.2 cents = () yuan

6 19g = () kg

19g = () kg

7 points = () yuan

6 decimeters = () meters

37 g = () kg

370g = () kg

9 decimeters = () meters

64 cm = () meters

208 square decimeter = () square meters

4620g = () kg

7 yuan 4.2 = () yuan.

1 km 50m = () km

1 1 square decimeter = () square centimeter

800 square decimeter = () square meters

7 square meters = () square decimeter

1000 square centimeter = () square decimeter

9 square meters = () square decimeter = () square centimeter

10000 square centimeter = () square decimeter = () square meter

1.2 cubic decimeter = () cubic centimeter = () liter

(2)1080ml = (1) l () ml = () cubic centimeter.

(3)0.06 cubic meter = () cubic decimeter = () liter

(4)4 tons and 50 kilograms = () tons = () kilograms

(5) 5008kg = () tons () kg = () tons

1.30m2 = () square decimeter = () square centimeter

2.9 square decimeter = () square centimeter

3.5 hectares = () square meters

48,000 m2 = () hectares

5.4500 hectares = () square kilometers

6.3 million square meters = () square kilometers

7.4 million square meters = () hectares = () square kilometers

8.4 square kilometers = 90 hectares () hectares

9. 120400 m2 = () hectares () m2

10.6 hectare = 500m2 = () m2

0. 15kg =()g 3.00 1t =()t()kg。

3.7 square decimeter = () square millimeter 5.80 yuan = () yuan () angle.

() decimeter = 1.5m () ton () kg = 4.08t

5 10/0m = () km 5m16cm = () m.

5 kg 700g = () kg 0.95m = () cm。

4700 m = () km 3650 g = () kg

40.06t = () kg1.4m2 = () decimeter.

360m2 = () hectares 7.05m = () meters () centimeters.

5.45 kg = () kg () g

3 km 50 m = () km () h = 30 minutes.

3 kg 500 g = () kg () hour = 2: 45.

2.78 tons = () tons () kg

0.25 hours = () minutes

504 cm = () meters

4.2m = () m () cm

10 meter 7 decimeter = () meter

0.06 km2 = () hectares

9 kg 750 g = () kg

8.04 tons = () tons () kg

6.24 square meters = () square decimeter

4 kg = () g 6000 g = () kg

() gram = 5 kg 10 kg = () gram

7 kg = () g 2000 g = () kg

1 kg = () g 9000 g = () kg

1 ton = () kg () ton = 3000 kg

8000 kg = () tons 40 tons = () kg

3 kg = () g 50000 g = () kg

4 tons = () kg 5000 g = () kg

() t = 3000kg kg 5000 g = () kg

9000kg=( )t 16t=( )kg

3000 kg -2000 kg = () tons

1 ton-300kg = () kg

3 m = () cm 7000 g = () kg

3 o'clock = () minutes 6 minutes 15 seconds = () seconds.

5400 kg = () tons () kg 5 meters 6 decimeters = () decimeters

240 = () 6: 35 = ().

75 minutes = () when () minutes 180 seconds = () minutes.

1 = () points 1 = () points 40 points.

80 seconds = () minutes () seconds 1 minutes 8 seconds = () seconds.