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a ) 12 h a = 120 000 m 2 5 k m 2 = 5 000 000 m 2 b ) 2500 d m 2 = 25 m 2 90 000 d m 2 = 900 m 2 c ) 8 m 2 26 d m 2 = 8 26 100 m 2 45 d m 2 = 45 100 m 2 d ) 20 m 2 4 d m 2 = 20 4 100 m 2 7 m 2 7 d m 2 = 7 7 100 m 2
5cm2 = 500mm2
12km2 = 1200hm2
1hm2 = 10000m2
7hm2 = 70000m2
1m2 = 1000cm2
5m2 = 50000cm2
3dam2 = 300 m2 2dam2 90m2= 290m2
15hm2 = 1500dam2 17dam225m2 =1705m2
500m2=5dam2 20hm2 34dam2=2034dam2
7000dam2=700 000m2 892m2 =8dam292m2
\(5cm^2=500mm^2\)
\(12km^2=1200ha\)
\(1ha=10000m^2\)
\(5m^2=50000cm^2\)
....
\(ha=hm^2\)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)\(\frac{2}{5}dam^2=40m^2\)
\(\frac{3}{4}hm^2=7500m^2\)
\(\frac{5}{8}km^2=625000m^2\)
b)\(\frac{2}{5}m^2=40dm^2\)
\(\frac{3}{4}m^2=7500cm^2\)
\(\frac{5}{8}m^2=625000mm^2\)
#Y/n
9 dam2 = 900m2
18m2= 1800dm2
17km2 = 170000 dam2
5m2 7dm2= 50700cm2
4km2 107dam2= 40107dam2
2/5km2= 400000 m2
480000cm2= 48m2
1800000mm2= 180 dm2
9000000m2= 9 km2
46000cm2= 4 m2 60 dm2
907000dam2= 90 km2 7000 dam2
3 4/5km2= 3 km2 8 hm2
9 dam2 = 900m2
18m2= 1800dm2
17km2 = 170000 dam2
5m2 7dm2= 50700cm2
4km2 107dam2= 40107dam2
2/5km2= 400000 m2
480000cm2= 48m2
1800000mm2= 180 dm2
9000000m2= 9 km2
46000cm2= 4 m2 60 dm2
907000dam2= 90 km2 7000 dam2
3 4/5km2= 3 km2 8 hm2
5 km2 950 m2 = 5000950 m2
7 hm2 5 m2 = 70005 m2
3 dam2 4 m2 = 304 m2
7543 mm2 = 0,007543 m2
45 dm2 = 0,45 m2
1250 cm2 = 0,1250 m2
0,57 km2 = 570000 m2
5950 m2
70005 m2
304 m2