800mm2=8cm2 3400dm2=34m2
2010m= 00,2010dm20m2 12 000hm2=120km2
150cm2=1dm250cm2 90 000m2=9 hm2
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Viết số thích hợp vào chỗ chấm :
800mm2 = ... cm2
3400dm2 = ... m2
12 000 hm2 = … km2
150cm2 = ... dm2... cm2
90 000m2 = ... hm2
2010m2 = ... dam2... m2
a) 5cm2 = ... mm2
12km2 = .... hm2
1hm2 = ......m2
7hm2 = ..... m2
1m2 = ...... cm2
5m2 = ....... cm2
12m2 9dm2= ..... dm2
37dam224m2 = ....m2
b) 800mm2 = ... cm2
3400dm2 = ... m2
12 000 hm2 = … km2
150cm2 = ... dm2... cm2
90 000m2 = ... hm2
2010m2 = ... dam2... m2
đổi :5cm2=............mm2
12km2=..............hm2
1hm2=............m2
7hm2=............m2
1m2=.........cm2
5m2=..........cm2
12m29dm2=.............dm2
37dam24m2=............m2
800mm2=..............cm2
12000hm2=.................km2
150cm2 = ..............dm2 ...........cm2
3400dm2=...........m2
90000m2=..............hm2
2010m2=.....dam2...........m2
đổi :
5cm2=.......mm2
12km2=.....hm2
1hm2= ..........m2
7hm2=.............m2
1m2= .............cm2
5m2=.........cm2
12m29dm2=...........dm2
37dam24m2 = .............m2
800mm2 = ...............cm2
12000hm2=.................km2
150cm2=............dm2............cm2
3400dm2=............m2
90000m2=............hm2
2010m2=............dam2..........m2
800mm2=....cm2 1000hm2=....km2 2600dm2=....m2 150cm2=....dm2....cm2 80000m2=....hm2 201m2=....dam2....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
Viết số thích hợp vào chỗ chấm :
k
m
2
h
m
2
d
a
m
2
m
2
d
m...
Đọc tiếp
Viết số thích hợp vào chỗ chấm :
| k m 2 | h m 2 | d a m 2 | m 2 | d m 2 | c m 2 | m m 2 |
| 1 k m 2 =.... h m 2 | 1 h m 2 =... d a m 2 =... k m 2 | 1 d a m 2 =... m 2 =.. h m 2 | 1 m 2 =100 m 2 =0,01 d a m 2 | 1 d m 2 =... c m 2 =... m 2 | 1 c m 2 =... m m 2 =... d m 2 | 1 m m 2 =.. c m 2 |
Chú ý : Khi đo diện tích ruộng đất người ta còn dùng đơn vị héc-ta (ha)
1ha = … m 2
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
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