7 cm2 =.........mm2
18 hm2 =...........m2
4300 dm2 =............m2
48 dm2 32 m2 = .............m2
3010m2 = ............dam2............ m2
160 cm2 = ................dm2 .............cm2
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
dài quá ai mà trả lờ được
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
TỰ LÀM ĐI DÀI LẮM
Cho hỏi là 236901=.................m2.................dm2 vậy ạ
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
a) 6km2 23456m2 = 6km2 23hm2 45dam2 6m2 = 6,23456km2
b) 5km2 246dam2 = 5km2 24hm2 6dam2 = 5,246km2
c) 57932cm2 = 5m2 79dm2 32cm2 = 5,7932m2
d) 5,405m2 = 5m2 40dm2 5 cm2 = 54050cm2 = 540,5dm2
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
TỰ LÀM ĐI DÀI LẮM
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
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 =100 h m 2 | 1 h m 2 = 100 d a m 2 = 0,01 k m 2 | 1 d a m 2 = 100 m 2 = 0,01 h m 2 | 1 m 2 =100 m 2 =0,01 d a m 2 | 1
d
m
2
= 100
c
m
2
= 0,01
m
2
|
1 c m 2 = 1000 m m 2 = 0,01 d m 2 | 1 m m 2 = 0,01 c m 2 |
Chú ý : Khi đo diện tích ruộng đất người ta còn dùng đơn vị héc-ta (ha)
1ha = 10000 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
7,6 hm2 = ..... dam2
0,17 dam2 = ...... m2
8,9 hm2 = ..... dam2
0,21 hm2 = ..21.... dam2
15,2 m2 = ...1520.. dm2
1,107 dm2 = ...11070.. mm2
0,321 dm2 = ..32,1... cm2
1,9 m2 = ...190.. dm2
0,821 km2 = ...8210... dam2
a. 17 dam2 5 m2 = .............m2
b. 16 hm2 51 m2 = ............. m2
c. 6542 cm2 = 65 .............42 .............
d. 203040089 m2 = 203 .............4 .............89 .............
e. 3 dm2 27 cm2 - 36 cm2 =............. cm2
f. 63 dm2 75 cm2 + 58 dm2 46 cm2 = .............m2 .............dm2 .............cm2
g. 3 dm2 5 cm2 : 5 = .............cm2
h. 44 dm2 x 4 = ............. m2 .............dm2
a. 17 dam2 5 m2 =1705m2
b. 16 hm2 51 m2 = 16051m2
c. 6542 cm2 = 65 dm242 cm2
d. 203040089 m2 = 20 km2 3 hm2 4 dam2 89 m2
e. 3 dm2 27 cm2 - 36 cm2 = 291 cm2
f. 63 dm2 75 cm2 + 58 dm2 46 cm2 = 1 m2 22 dm2 21 cm2
g. 3 dm2 5 cm2 : 5 = 61 cm2
h. 44 dm2 x 4 = 1 m2 76 dm2
1 viết số thích hợp vào chỗ chấm
4750 m2 = ........dam2 = ............m2
137 hm2 = ..........km2 = .............hm2
247 dm2 = ............m2= .............dm2
324 cm2 = .............dm2
7m2 6 dm2 = ............. dm2
7 hm2 8m2 = .............m2
4750 m2 = ..47......dam2 = ....50........m2
137 hm2 = ...1.......km2 = ....37.........hm2
247 dm2 = ....2........m2= ........47.....dm2
324 cm2 = .......3,24......dm2
7m2 6 dm2 = ........706..... dm2
7 hm2 8m2 = ........70008.....m2
4750 m2 = 47,5 dam2 = 4750 m2
137 hm2 = 1,37 km2 = 137 hm2
247 dm2 = 2,47 m2 = 247 dm2
324 cm2 = 3,42 dm2
7m2 6dm2 = 706 m2
7hm2 8m2 = 70008 m2
47,50 dam2
1,37km2
3,24 dm2
706 dm2
70002 m2