`1hm^2=10000m^2`

`->9,075hm^2=9,075xx10000=90750m^2`

`··············`

`1m=100cm`

`->7,34m=7,34xx100=734cm`

`·················`

 `1dam=100dm`

`->3,06dam=3,06xx1000=306dm`

`··················`

`1dm^2=100cm^2`

`->5,2dm^2=5,2xx100=520cm^2`

`···················`

`1dm^2=1/10000 dam^2`

`->520dm^2=520/10000dam^2=0,052dam^2`

`···················`

`1cm^2=1/10000m^2` nên `34cm^2=34/10000m^2=0,0034m^2`

`->112m^2 234cm^2=112m^2+0,0034m^2=112,0034m^2`

`·····················`

`1m^2=1/10000ha` nên `35m^2=35/10000ha=0,0035`

`->3ha 35m^2=3ha+0,0035ha=3,0035ha`

`·······················`

`1dm=10cm` nên `34cm=34:10=3,4dm`

`1m=10dm` nên `2m=2.10=20dm`

`->2m34cm=20dm+3,4dm=23,4dm`

`#Sal_tSea`

Đáp án: `+` Giải thích các bước giải:

`9,075 hm^2 = 90750 m^2`

`9,075 xx 10000 = 90750 m^2`

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`7,34 m = 734 cm`

`7,34 xx 100 = 734 cm`

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`3,06 dam = 306 dm`

`3,06 xx 100 = 306 dm`

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`5,2 dm^2 = 520 cm^2`

`5,2 xx 100 = 520 cm^2`

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`520 dm^2 = 0,052 dam^2`

`520 : 10000 = 0,052 dam^2`

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`112 m^2 34 cm^2 = 112,0034 m^2`

`34 cm^2 = 0,0034 m^2 + 112 m^2 = 112,0034 m^2`

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`3 ha 35 m^2 = 3,0035 ha`

`35 m^2 = 0,0035 ha + 3 ha = 3,0035 ha`

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`2 m 34 cm = 23,4 dm`

`2 m = 200 cm + 34 cm = 234 cm : 10 = 23,4 dm`