đổi đơn vị đo
2,511m2=.............dam2
K
Khách
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Những câu hỏi liên quan
ND
Nguyễn Đức Trí
VIP
16 tháng 7 2023
\(2dam^216m^2=2,16dam^2\)
\(\)\(46dam^25m^2=46,95dam^2\)
\(3km^24cm^2=30000,0004dam^2\)
\(32dam^29m^2=32,09dam^2\)
\(8dam^262m^2=8,62dam^2\)
\(16dam^229m^2=16,29dam^2\)
\(52dam^240m^2=52,4dam^2\)
\(13hm^224dm^2=1300,0024dam^2\)
16 tháng 7 2023
16m2 = 1.6dam2
46dam2 5m2 = 465m2
3km2 4cm2 = 30004dam2
32dam2 9m2 = 329.9dam2
8dam2 62m2 = 862m2
16 dam2 29m2 = 1629m2
52dam2 40m2 = 5240m2
13hm2 24dm2 = 1324dam2
CM
9 tháng 11 2017
67 dam2 51m2 = 67 dam2 + 
m2 = 
dam2
82 dam2 7m2 = 82dam2 + 
m2 = 
dam2
DB
10 tháng 12 2021
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U
PT
Đổi đơn vị đo:
2 km2 95 hm2 =......km2. 8 tấn 5 yến=.......tạ
476,5 dam2 =.....ha. 647,5 kg=.......tấn
0
17 tháng 1
Câu 1:
7,48:(30,12-y)=13,6
=>\(30,12-y=\dfrac{7.48}{13,6}=0,55\)
=>\(y=30,12-0,55=29,57\)
Câu 2:
b: \(15m^330dm^3=15,03m^3\)
c: 4,45 giờ=4 giờ 27 phút
d: \(2km^2812dam^2=2,0812km^2\)
Câu 3:
a: thể tích nước đã chảy vào bể là:
\(2,8\cdot1,5\cdot1,2\cdot0,75=3,78\left(m^3\right)=3780\left(lít\right)\)
b: Thời gian để bơm được 75% bể là:
3780:20=189(phút)=3 giờ 9 phút
Bể sẽ chứa 75% thể tích nước vào lúc:
8 giờ+3 giờ 9 phút=11 giờ 9 phút
14 tháng 4 2021
Câu 1: a)
Km2 | Hm2 | Dam2 | M2 | Dm2 | Cm2 | Mm2 |
1km2 = 100hm2 | 1hm2 = 100dam2 = 0,01 km2 | 1dam2 = 100m2 = 0,01hm2 | 1m2 = 100dm2 = 0,01dam2 | 1dm2 = 100cm2 = 0,01m2 | 1cm2 = 100mm2 = 0,01dm2 | 1mm2 = 0,01cm2 |
b) Chú ý: Khi đo diện tích ruộng đất người ta còn dùng đơn vị héc-ta (ha)
1ha = 10000m2
Trong bảng đơn vị đo diện tích:
– Đơn vị gấp 100 lần đơn vị bé hơn tiếp liền.
– Đơn vị bé bằng 1/ 100 đơn vị lớn hơn tiếp liền.
14 tháng 4 2021
b)
Đơn vị lớn gấp 10 lần đơn vị bé hơn tiếp liền
Đơn vị bé bằng một phần 10 đơn vị lớn hơn tiếp liền
3 tháng 4 2017
| km2 | hm2 | dam2 | m2 | dm2 | cm2 | mm2 |
| =100hm2 | =100dam2 =\(\frac{1}{100}\)km2 | 100 m2 =\(\frac{1}{100}\)hm2 | ||||
tương tự đi mà làm |
a 100
b \(\frac{1}{100}\)
c 100
2 tháng 4 2018
34dm2= o,34 m2
5290cm2=0,529m2
4ha =0,0004m2
3,2 dam2=320 m2
0,5 km2=500000m2
0,15 ha= 1500m2
2 tháng 4 2018
Vũ Thanh Trúc mình cảm ơn bạn nhiều nhé nhưng bạn làm còn thiếu bài trên đấy.
2,511 m2 = 0,02511 dam2
251,1 m2 nha
chúc bạn học tốt