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CÁI BÀI NÀY CÓ VẤN ĐỀ RỒI BẠN ƠI M2 ĐỔI RA DM2 MÀ CÁI NÀY BỊ LỖI
đâu mình chép trong sach giáo khoa toán lớp 5 trang 28 bài luyện tập
6 d a m 2 28 m 2 = 6 d a m 2 + 28 100 d a m 2 = 6 28 100 d a m 2
25 d a m 2 70 m 2 = 25 d a m 2 + 7 10 d a m 2 = 25 7 10 d a m 2
64 d a m 2 5 m 2 = 64 d a m 2 + 5 100 d a m 2 = 64 5 100 d a m 2
67 dam2 51m2 = 67 dam2 + 
m2 = 
dam2
82 dam2 7m2 = 82dam2 + 
m2 = 
dam2
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\(5km^2=5000000m^2\)
\(2hm^2=20000m^2\)
\(100dm^2=1m^2\)
\(2dam^2=200m^2\)
\(200cm^2=0.02m^2\)
\(2000000mm^2=2m^2\)
\(3km^2=300ha\)
\(2000dam^2=20ha\)
\(200000m^2=20ha\)
5km2= 5000000m²
2hm2=200m2
100dm2 =1m2
2dam2=200m2
200cm2=0,02m2
2 000 000mm2=2m2
Héc - ta
3km2=300ha
2000 dam2=20 ha
200 000 m2 =20 ha
26m2 34dm2 = 26m2 + 34/100m2 = 26 34/100m2
1500dm2 = 1500 : 100 = 15m2
90m2 5dm2 = 90m2 + 5/100m2 = 9 5/100m2
Diện tích rừng Cúc Phương là 22 200ha.Em hãy viết số đo diện tích rừng Cúc Phương
a) dưới dạng số đo có đơn vị là ki-lô-mét vuông.
b) dưới dạng số đo có đơn vị là mét vuông.
a) `0,75km=750m`
b) `1,32km=1320m`
c) `5,1hm=510m`
d) `0,001dam=0,01m`
6,7dm2=0,67m2
0,234dm2= 0.00234m2
0,072dm2=0.00072m2
406,005dm2=4.06005m2
6,7 dm2 = 0,067 m2
0,234 dm2 =0,00234m2
0,072 dm2 = 0,00072 m2
406,005 dm2 = 4,06005 m2