1.000m2+2hm2=……are

1.000 m²
= 1.000/100
= 10 are

2 hm²
= 20.000 m²
= 20.000/100
= 200 are
______________________

1.000 m² + 2 hm² = … are
= 10 + 200
= 210 are

Are : dm2
100m2 : 10
2hm2 :200
—————————+
210 are