Viết các số đo sau dưới dạng số đo có đơn vị là mét vuông
A . 5 ha , 2km2
B . 400 dm2 , 1 500 dm2 , 70 000 cm2
C . 26 m2 17 dm2 , 90 m2 5 dm2 , 35 dm2
A. 5 ha = 50000 m2
2 km2 = 2000000 m2
B. 400 dm2 = 4 m2
1500 dm2 = 15 m2
70000 cm2 = 7 m2
C. 26 m2 17 dm2 = 26,17 m2
90 m2 5 dm2 = 90,05 m2
35 dm2 = 0,35 m2
Viết các số đo sau đây dưới dạng số đo có đơn vị là mét vuông:
30 dm 2 ; 300 dm 2 ; 515d m 2
30 d m 2 = 0,3 m 2
300d m 2 = 3 m 2
515d m 2 = 5,15 m 2
bài 1: Việt các số đo sau dưới dạng hỗn số
a) Mẫu: 9 dm2 5mm2=900\(\dfrac{5}{100}\)cm2
73m2 8cm2 =.................m2
b) 105m2 7dm2 =...............m2
21 m2 8 mm2=..........m2
7m2 25cm2 =...........dm2
45m2 9mm2=...........cm2
a) \(73m^28cm^2=73\dfrac{8}{10000}m^2\)
b) \(105m27dm^2=105\dfrac{7}{100}m^2\)
c) \(21m^28mm^2=21\dfrac{8}{1000000}m^2\)
d) \(7m^225cm^2=700\dfrac{25}{100}dm^2\)
e) \(45m^29mm^2=450000\dfrac{9}{100}cm^2\)
1. viết các số đo sau dưới dạng số đo có đơn vị là mét vuông.
6,7 dm2 = m2 0,234dm2 = m2 0,072 dm2 = m2 406,005 dm2 = m2
6,7 dm2 = 0,067 m2 0,234 dm2 = 0,0234 m2 0,072 dm2 = 0,00072 m2 406,005 dm2 = 0,406005 m2
k mình nha
Chúc bạn học giỏi
Mình cảm ơn bạn nhiều
giúp đi mình sẽ k ai nhanh và đúng nhất
6,7 dm2 = 0,067 m2
0,234 dm2 = 0,00234 m2
0,072 dm2 = 0,00072 m2
406,005 dm2 = 4,06005 m2
k mình nhé
Viết các số đo sau dưới dạng số đo có đơn vị là mét vuông:
6 m 2 35d m 2 ; 8 m 2 27d m 2 ; 16 m 2 9d m 2 ; 26d m 2
Viết các số đo sau dưới dạng số đo có đơn vị là mét vuông :
26 m 2 17d m 2 ; 90 m 2 5d m 2 ; 35d m 2 .
4/ Viết các số đo sau dưới dạng số thập phân:
7,54 m2 = … dm2 89,3 ha =…km2 167,8 dm2= …m2 | 97,1 ha = …dam2 54,4 m2 =…dam2 6,9 km2 = ,,,ha |
7,54 m2 = 754 dm2 89,3 ha = 0,893 km2 167,8 dm2= 1,678 m2 | 97,1 ha = 9710 dam2 54,4 m2 = 0,544 dam2 6,9 km2 = 690 ha |
Viết các số đo sau dưới dạng số đo có đơn vị là mét vuông :
400d m 2 ; 1500d m 2 ; 70 000c m 2
400d m 2 = 4 m 2 ; 1500d m 2 = 15 m 2 ; 70 000c m 2 = 7 m 2
Viết các số đo dưới dạng số đo có đơn vị là đề-ca-mét vuông (theo mẫu):
Mẫu:
8
d
a
m
2
33
m
2
=
8
d
a
m
2
33
100
m
2
=
8
33
100
d
a
m
2
67
d
a
m
2
51
m
2
=
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
.
82
d
a
m
2
7
m
2
=
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
67 dam2 51m2 = 67 dam2 + 
m2 = 
dam2
82 dam2 7m2 = 82dam2 + 
m2 = 
dam2
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