1. Số?
a) 7km2 5m2 =......m2
b) 6434 dam2=.........m2
c) 6434 dam2=..........km2 ..............m2
14m2 12dm2 = dm2
7dam2 5m2 = m2
19hm2 27dam2 = dam2
7218m2 =....dam2 ........m2
16823m2 = .......hm2 ....... m2
405 dam2 = ..........hm2 ............dam2
Viết số thích hợp vào chỗ chấm
3dam2=.........m2
15hm2=.......dam2
500m2=........dam2
7000dam2=......hm2
2dam2 90m2=.......m2
17dam2 5m2=.......m2
20hm2 34dam2=....dam2
892m2=.........dam2.......m2
9 dam2 = ........m2
18m2=......dm2
17km2 = ......dam2
5m2 7dm2=.......cm2
4km2 107dam2=.....dam2
2/5km2=....m2
480000cm2=.........m2
1800000mm2=.......dm2
9000000m2=.......km2
46000cm2=......m2........dm2
907000dam2=....km2......dam2
3 4/5km2=......km2......hm2
5m2 = .............................cm2;2km2 =.......................ha;2608m2=...................dam2......................m2;30000hm2=.................. ha
2 dam2 5m2= dam2
1km2 5dam2 = km2
6hm2 7dam2 = hm2
18hm2 17m2 = hm2
.a.7dam2.2m2 =m2.b.4cm2=m2.c.21dm2.4cm2=cm2.d.5m2=dam2
15dam2 5m2=..dam2
9tấn21kg=...tấn
21n12mm=....m
2dam2 90m2 = .... m2
17dam2 5m2 = ....m2
20hm2 34dam2 = ..... dam2
892 m2 = ..... dam2 .....m2
Đúng ghi Đ, sai ghi S vào ô trống
17 km 2 56 dam2 = 17,049 km2 ... 5m2 25 dm2 = 5,25 m2 ...