viết số thích hợp vào chỗ chấm :
a) 9 dam2 =....m2 b) 480000 cm2=.........m2
18 m2=......dm2 1800000 mm2=.........dm2
17 km2=.........dam2 9000000m2=...........km2
c) 5m2 7dm2 =.........cm2 d) 46000cm2=..........m2 ............dm2
4km2 107dam2=..........dam2 907000dam2=..........km2..........hm2
A) 9 dam2 = 900 m2 B) 480000 cm2 = 48 m2
18 m2 = 1800 dm2 1800000 mm2 = 180 dm2
17 km2 = 170000 dam2 9000000 m2 = 9 km2
Thôi, tớ ghi đáp án luôn cho nó nhanh:
C) 50700 cm2 D) 4 m2 60 dm2
40107 dam2 9 km2 70 hm2 thôi, Ha cho nó nhanh
a) 9 dam2 = 900m2 b)480000 cm2 = 48 m2
18m2 = 1800dm2 1800000mm2 = 180 dm2
17km2 =170000dam2 9000000m2 = 9 km2
c) 5m2 7dm2 = 50700cm2 d) 46000cm2 = 4,6 m2 = 460 dm2
4 km2 107 dam2 = 40107 dam2 907000dam2 = 90,7 km2 = 90,70 hm2