2¹/2 km² + 750 dam² + 250 are = ........ha

1km²=100ha
2,5km²=250ha
750dam²=7,5ha
250 a=2,5
250+7,5+2,5=260ha

1 ha = 1 hm²
1 are = 1 m²

2  1/2  km² + 750 dam² + 250 are = ........hm²

kita tulis saja 2 1/2 km² menjadi  2.5km²
kita ubah satu per satu
 2.5km²  = 250hm²
750 dam²  =  7.5 hm²
250 are =  0.025 hm²


250 hm²  + 7.5 hm² + 0.025hm² = 257.525 hm²

semoga membantu ^-^