81 dm2 5cm2 =.........cm2
viết số thích hợp vào chỗ chấm :
8791dm2 = m2 dm2
18dm2 5cm2 = cm2
5308 dm2 = m2 dm2
4 dm2 = cm2
3m2 6dm2 = dm2
\(8791dm^2=87m^291dm^2\)
\(18dm^25cm^2=1805cm^2\)
\(5308dm^2=53m^28dm^2\)
\(4dm^2=400cm^2\)
\(3m^26dm^2=306dm^2\)
8791dm2=87m291dm28791dm2=87m291dm2
18dm25cm2=1805cm218dm25cm2=1805cm2
5308dm2=53m28dm25308dm2=53m28dm2
4dm2=400cm24dm2=400cm2
3m26dm2=306dm
8791 dm2 = 87 m2 91 dm2
18 dm2 5cm2 = 1805 cm2
5308 dm2 = 53 m2 8dm2
4dm2 = 400 cm2
Viết số thích hợp vào chỗ chấm :
5cm2 = ... mm2
12km2 = .... hm2
1hm2 = ......m2
7hm2 = ..... m2
1m2 = ...... cm2
5m2 = ....... cm2
12m2 9dm2= ..... dm2
37dam224m2 = ....m2
5cm2 = 500mm2
12km2 = 1200hm2
1hm2 = 10000m2
7hm2 = 70000m2
1m2 = 1000cm2
5m2 = 50000cm2
a) 2m2 5cm2 = ................m2 b) 2,7dm2 = ...........dm2 ............cm2
c) 508,2 kg =.................. tạ d)1,23km =..........km..........m
a)2m2 5cm2=2,0005m2
b)2,7dm2=2dm270cm2
c)508,2kg=5,082 tạ
d)1,23km=1km 230m
7 dm2 5cm2= cm2
915 cm2= dm2 cm2
23 m2= dm2
600 dm2= m2
13 m2 5dm2= dm2
306 m2= m2 dm2
1/2 yến =......kg
1yến 8kg=......kg
3m2 99dm2=.......dm2
3dm2 5cm2=.......cm2
1/2 yến=5 kg
1 yến 8 kg= 18 kg
3 m2 99 dm2= 399 dm2
3dmm2 5 cm2=305 cm2
câu 1 đáp án là:5kg
câu 2: đáp án là 18kg
câu 3 đáp án là:399dm vuông
câu 4 đáp án là 305 cm vuông
1//2 của 8kg là.................................kg
toán LỚP 3
đổi :5cm2=............mm2
12km2=..............hm2
1hm2=............m2
7hm2=............m2
1m2=.........cm2
5m2=..........cm2
12m29dm2=.............dm2
37dam24m2=............m2
800mm2=..............cm2
12000hm2=.................km2
150cm2 = ..............dm2 ...........cm2
3400dm2=...........m2
90000m2=..............hm2
2010m2=.....dam2...........m2
đổi :
5cm2=.......mm2
12km2=.....hm2
1hm2= ..........m2
7hm2=.............m2
1m2= .............cm2
5m2=.........cm2
12m29dm2=...........dm2
37dam24m2 = .............m2
800mm2 = ...............cm2
12000hm2=.................km2
150cm2=............dm2............cm2
3400dm2=............m2
90000m2=............hm2
2010m2=............dam2..........m2
a) 5cm2 = ... mm2
12km2 = .... hm2
1hm2 = ......m2
7hm2 = ..... m2
1m2 = ...... cm2
5m2 = ....... cm2
12m2 9dm2= ..... dm2
37dam224m2 = ....m2
b) 800mm2 = ... cm2
3400dm2 = ... m2
12 000 hm2 = … km2
150cm2 = ... dm2... cm2
90 000m2 = ... hm2
2010m2 = ... dam2... m2
\(5cm^2=500mm^2\)
\(12km^2=1200ha\)
\(1ha=10000m^2\)
\(5m^2=50000cm^2\)
....
\(ha=hm^2\)nha bạn
#) Trả lời :
a) 5 cm2 = 500 mm2 ; 12km2 = 1200 hm2
1 hm2 = 10 000 m2 ; 7hm2 = 70 000 m2
1 m2 = 10 000 cm2 ; 5 m2 = 50 000 cm2
12 m2 9 dm2 = 1209 dm2 ; 37 dam2 224 m2 = 3924 m2
b) 800 mm2 = 8 cm2 ; 3400 dm2 = 34 m2
12 000 hm2 = 120 km2 ; 150 cm2 = 1 dm2 50 cm2
90 000 m2 = 9 hm2 ; 2010 m2 = 20 dam2 20 m2
#~Will~be~Pens~#
a) =50 mm2
=1200 hm2
=10 000 m2
=70 000 m2
=10 000 cm2
=50 000 cm2
=1209 m2
=3924 m2
b) =8 cm2
=34 m2
=120 km2
=1dm250cm2
=9 hm2
=20 dam2 10 m2
20ha2=.... dam2
5cm2=......mm2
13km2=.....ha
300m2=.....dam2
2100dam2=.....hm2
900mm2=......cm2
38m2 25dm2=.....dm2
15dm2 9cm2=.....cm2
10cm2 6mm2=.....mm2
Các bạn giúp mình với nha! Tối nay mình phải nộp rồi!
20ha=2000dam2
5cm2=500mm2
13km2=1300ha
300m2=3dam2
2100dam2=21hm2
900mm2=9cm2
38m2, 25dm2=3825dm2
15dm2 9cm2=1509cm2
10cm2 6mm2=1006mm2