4dm2 3200 mm2 = 432 cm2
252 dam2 537 m2 = 2,5737 hm2
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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
38m225dm2= ............................dm2 15dm29cm2 = ..............................cm2 10cm26mm2=..............................mm2 5hm230m2= ..............................m2 198cm2= ...........................dm2 ......................cm2 2080dm2=....................m2 ....................dm2 3107mm2= ..................cm2 ...................mm2 45908 m2 = .................hm2 ...............dam2 ........
7,6 hm2 = ..... dam2
0,17 dam2 = ...... m2
8,9 hm2 = ..... dam2
0,21 hm2 = ...... dam2
15,2 m2 = ..... dm2
1,107 dm2 = ..... mm2
0,321 dm2 = ..... cm2
1,9 m2 = ..... dm2
0,821 km2 = ...... dam2
7 cm2 =.........mm2
18 hm2 =...........m2
4300 dm2 =............m2
48 dm2 32 m2 = .............m2
3010m2 = ............dam2............ m2
160 cm2 = ................dm2 .............cm2
dien so hoac phan so thich hop :
30000cm2=..dm2..m2
6124cm2=...mm2
6dm2=...m2...cm2
4km2=..hm2..dam2
10m2=...dm2..cm2
2dm23cm2=...cm2
8200m2=..dam2
a) 2/5 dam2=…m2, 3/4 hm2=…m2, 5/8 km2=…m2,
b) 2/5 m2=…dm2, 3/4m2=…cm2, 5/8m2=…mm2
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
7 cm2 ....mm2 2 m2 ...cm2 15 km2 .....hm212 hm2 .....m2 15 m2 8dm2 ...dm2 3 dam2 22 m2 ....m22.800 mm2 ....cm2 2600 dm2....m2 80 000 m2 ...hm21000 hm2 ....km2 150 cm2 .....dm2.....cm2 201 m2 ....dam2...m23.2 mm2 ....cm2 5 dm2 ....m2 34 dm2...m245 cm2 ....dm2 25 mm2 ....cm2 ...
Đọc tiếp
7 cm2 =....mm2 2 m2 =...cm2 15 km2 =.....hm2
12 hm2 =.....m2 15 m2 8dm2 =...dm2 3 dam2 22 m2 =....m2
2.
800 mm2 =....cm2 2600 dm2=....m2 80 000 m2 =...hm2
1000 hm2 =....km2 150 cm2 =.....dm2.....cm2 201 m2 =....dam2...m2
3.
2 mm2 = ....cm2 5 dm2 =....m2 34 dm2=...m2
45 cm2 =....dm2 25 mm2 =....cm2 28 cm2 =.......m2