Bi 1: Vit s thch hp vo ch chm a) 5m 4cm = ........cm b) 5tn 4yn = ........kg c) 5m2 54cm2 = ......cm2 270 cm = ..........dm 2t 7kg = ........kg 5m2 54cm2 = ......cm2

720 cm = .......m ....cm 2 tn 2 yn = ........kg 7m2 4cm2 = .....cm2 Bi 2: Vit s thch hp vo ch chm : a) ..cm2 = 16mm2 b) 2215mm2 = cm2 c) 2612cm2 = dm2 ..km2 = 2154hm2 42145dm2 = .dam2 1086m2 =.m2 78416258m2 = ..km2 215m2 = km2 1254 mm2 = . dm2 Bi 3: Vit s thch hp vo ch chm 71dam2 25m2 =.. ha 2ha 4 m2 = ha; 49,83dm2 = m2 8m27dm2 = m2 249,7 cm2 = .m2 801cm2 =.m2 6521hm2 =.dam2 7,3 m = ...dm 35,56m = ...cm 8,05km = ...m 6,38km = ...m 6,8 cm2 = ...dm2 3,14 ha = ....m2 0,24 ha = ...km2 0,2 m2 = ...ha

Bai 4: at tnh roi tnh:

a/ 3,15x2,7 b/13,44:3,2 c/ . x d/ :

e/ 356,37-552,81 f/416,3-250,17 g/ 25,46x3,6 h/ 78,24:1,2

Bai 5: Tnh gia tr bieu thc:

a/ : = b/ 0,45+ 0,32 x 0,5 =

c/ 4,08 :1.2-2,03 d/ 2,15+0,763:0,7

Bai 6: Mot tha ruong hnh bnh hanh co so o canh ay 120m va chieu cao bang

canh ay. Ngi ta cay lua tren tha ruong o, c 500 m2 thu c 1250 kg lua. Hoi

tha ruong o thu c bao nhieu tan lua.

Bai 7: Mot ngi ban hang c lai 60 000 ong va so tien lai bang 8% so tien von bo

ra. Tm so tien von ngi o a bo ra.