https://olm.vn/hoi-dap/detail/195347396529.html

a ) 2,539m = 2m 5dm 3cm 9mm               b ) 7,306m = 7m 3dm 6mm
                  = 2m 53cm 9mm                                        =  7m 30cm 6mm
                  = 2m 539mm                                               = 7m 306mm
                  =  2539mm                                                  = 7306mm

c ) 2,586km = 2km 586m                                 d ) 8,2km = 8km 200m
                    = 2586m                                                        =  8200
 

1 mm2 = 0,01 cm2

1 mm2 = 0,0001 dm2

1 mm2 = 0,000001 m2

1mm = 0,1 cm

1mm = 0,01 dm

1mm = 0,001 m

1 mm² = 0,01 cm²

1 mm² = 0,0001 dm²

1 mm² = 0,000001 m²

1 mm = 0,1 cm

1 mm = 0,01 dm

1 mm = 0,001 m 

2,586 km = 2586m = 2586000 mm

8,2 m = 82 dm = 820 cm

( còn cái km và m kia là giống đề bài )

3mm=0.3cm

2hm=0.2km

8dm=0.8m

5mm=0.005

5cm=0.5m

13m=0.13m

2731cm=27m31cm

4005mm=40dm5mm

3mm = 3/10cm = 0, 3cm

2hm = 2/10km = 0, 2km

8dm = 8/10m = 0, 8m

5mm = 5/1000m = 0, 005m

5cm = 5/100m = 0, 05m

13m = 13/100hm = 0, 13hm

3cm 1mm = 31/1000m = 0, 031m

13 013m = 13km 13m

2731cm = 27m 31cm

4005mm = 40dm 5mm

300 mm² = 3 cm²

500 cm² = 5 dm²

700 dm² = 7 m²

6 000 000 mm² = 6 m²

6 m² = 6 000 000 mm²

200 mm² = 2 cm²

40 000 mm² = 4 dm²

6017 dm=.......601,7.......m=...60,17..........dam.

0,45 dam=.....0,045........km=......45.......m.

62,64 m=......0,6264........hm=......0,06264........km.

79,734mm=.....0,79734.........m=.....0,00079734........km.

50000 km=.....5000000......dam=.......5000000000.......cm.

0,00008 m=......0,0000008.......hm=.....0,08........mm.

6017dm=601,7m=60,17dam

0,45dam=0,0045km=4,5m

62,64m=0,6264hm=0,06264km

79,734mm=0,079734m=0,000079734

50000km=5000000dam=50000000000cm

0,00008m=0,0000008hm=0,08mm

chuc bạn hoc tot!

6,4723m²=647,23dm²=64723cm²=6472300 mm²

6,4723 m² = 64,723 dm² = 647,23 cm ² = 6472,3 mm²

Học tốt nha em !!!

42,4 dm

56,9 cm

26,9 cm

34,06 m

3,45 m

42,4 dm

56,9 cm

26,9 cm

34,05 m

3,45 m