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1 sào =3600:10=360
1 thước =360:15=24(mét vuông)
Đáp số:24 mét vuông
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
ta có chiều cao của thửa ruộng hình thang là :
\(360\times\frac{2}{48}=15m\)
tổng số tiền 3 loại là:
10000+5000=15000(đồng)
số tiền ta có là;
15000:2=7500(đồng)
đáp số:7500 đồng
Ht
@SKY LẠNH LÙNG
67 dam2 51m2 = 67 dam2 + 
m2 = 
dam2
82 dam2 7m2 = 82dam2 + 
m2 = 
dam2
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U
Giải:
Gọi số cần tìm là a ta có:
\(\frac{34-a}{9}=\frac{1}{5}\)
\(\Rightarrow\left(34-a\right)\times5=9\)
\(\Rightarrow170-5\times a=9\)
\(\Rightarrow5\times a=161\)
\(\Rightarrow a=\frac{161}{5}\)
Vậy số cần tìm là \(\frac{161}{5}\)