viết số đo sau dưới dạng số đo có đơn vị là hecta: 65000 m2, 9,2 km2
(1ha = 1hm2 = 10000 m2 , 1a = 1 dam2 = 100 m2 = 0,01 ha)
K
Khách
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Những câu hỏi liên quan
CM
5 tháng 6 2018
| k m 2 |
h
m
2
|
d a m 2 | m 2 | d m 2 | c m 2 | m m 2 |
| 1 k m 2 =100 h m 2 | 1 h m 2 = 100 d a m 2 = 0,01 k m 2 | 1 d a m 2 = 100 m 2 = 0,01 h m 2 | 1 m 2 =100 m 2 =0,01 d a m 2 | 1
d
m
2
= 100
c
m
2
= 0,01
m
2
|
1 c m 2 = 1000 m m 2 = 0,01 d m 2 | 1 m m 2 = 0,01 c m 2 |
Chú ý : Khi đo diện tích ruộng đất người ta còn dùng đơn vị héc-ta (ha)
1ha = 10000 m 2
MN
7 tháng 3 2018
a) 1 m2 = 100 dm2 = 10000 cm2 = 1000000 mm2
1 ha = 10000 m2
1 km2 = 100 ha = 1000000 m2
b) 1 m2 = 0,01 dam2
1m2 = 0,000001 km2
1 ha = 0,01km2
4 ha = 0,04 km2
LT
Lê Trần Trà My
VIP
19 tháng 8 2023
a) 1,2075 km2=1207500 m2 b) 0,452 hm2 = 4520 m2
c) 12,075 ha = 120750 m2 d) 10,241 dam2=1024,1 m2
NT
Nguyễn Thị Thương Hoài
Giáo viên
VIP
19 tháng 8 2023
a) 1,2075 km2 = 1207500 m2 b) 0,452 hm2 = 4520 m2
c) 12,075 ha = 120750 m2 d) 10,241 dam2 = 1024,1 m2
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
S
3 tháng 4 2017
a) 34dm2 = 0,34m2
5290cm2 = 0,529m2
4ha = 40000m2
b) 3,2dam2 = 320m2
0,5km2 = 500000m2
0,15ha = 1500m2
3 tháng 4 2017
a, 34dm2 = 0.34m2
5290cm2 = 0.529m2
4ha = 40 000m2
b, 3.2dam2 = 0.032m2
0.5km2 = 0.005m2
0.15ha = 1500m2
DL
2 tháng 4 2018
1. Viết số thích hợp vào chỗ trống :
a, 1 km2 = 100 ha b, 1m2 = 0,01 dam2 =.0.001ha
1ha = .10000 m2 15 m2 = 0.15 dam2 =0.015. hm2
7 hm2 = 70000m2 8000 m2 =0.8ha
12 dam2 = 1200 m2 1400 cm2 =0.14. m2
3ha = 30000m2 5ha =0.05 km2
DL
2 tháng 4 2018
34 dm2 =. 0.34m2 3,2 dam2 = 320m2
5290 cm2 =0.5290m2 0,5 km2 = 500000m2
4ha = 400000m2 0,15 ha =1500m2
11 tháng 10 2020
CÁI BÀI NÀY CÓ VẤN ĐỀ RỒI BẠN ƠI M2 ĐỔI RA DM2 MÀ CÁI NÀY BỊ LỖI
11 tháng 10 2020
đâu mình chép trong sach giáo khoa toán lớp 5 trang 28 bài luyện tập
65000m2=6,5ha
8,2km2=820ha
9,2 nhé bạn
chứ ko phải 8,2