85,79 km2 =...... cm2

32m2 4dm2= ......m2

1872dm2= ......m2

6km2 23456m2=.......km2....hm2..........dam2=..........m2......................km2

5km2 246dam2=.........km2..........hm2..............dam2=,,,,,,,,,,,m2............km2

57932cm2=.........m2................dm2.........cm2=....m2

5,405m2=....m2........................dm2..........cm2................cm2=...............dm2

37805cm2=......m2........dm2.........cm2=..........m2

57950cm2=..............m2.............dm2...................cm2=...........dm2

6km2 23456m2=........km2...........hm2.........dam2..........m2=..........km2

5km2 246m2=........km2...........hm2.........dam2=.........m2..........km2

57932 m2= ............m2............dm2..........cm2=...........m2

5,405m2=...............dm2............cm2..........=.............cm2...........dm2

7km318m=........km           1 giờ 12 phút =......giờ 

4 tấn 5 kg=......tấn               32m2 4dm2=.........m2

6km2 23456m2=…km2…hm2…dam2…m2=…km2

5km2 246dam2=…km2…hm2…dam2=…km2

57932cm2=…m2…dm2…cm2=…m2

5,405m2=…m2…dm2…cm2=…cm2…=…dm2

6km2 23456m2=…km2…hm2…dam2…m2=…km2

5km2 246dam2=…km2…hm2…dam2=…km2

57932cm2=…m2…dm2…cm2=…m2

5,405m2=…m2…dm2…cm2=…cm2…=…dm2

viết số thích hợp vào chỗ chấm:

a) 14000 m2=.....ha

b)600ha=.....km2

c)15m2 4dm2=......m2

d)1600ha=......km2

điền số thích hợp vào chỗ chấm

a) 45 000 m2 = ..................ha

b) 6 km2 =...........................ha

c) 15m2 4dm2 = ...........................m2

d) 1600 ha =.....................km2