Compléter les trous. Puis cliquer sur "Vérifier". Vous pouvez passer d'un trou à un autre en utilisant la touche tabulation.

Convertir les aires suivantes: On enlèvera les zéro inutiles.

7 235 ${\displaystyle a}$ = ${\displaystyle ha}$	62 500 ${\displaystyle m^2}$ = ${\displaystyle ha}$	425 ${\displaystyle m^2}$ = ${\displaystyle a}$
438 ${\displaystyle ca}$ = ${\displaystyle m^2}$	53,2 ${\displaystyle ha}$ = ${\displaystyle h{m}^2}$	4 385 ${\displaystyle m^2}$ = ${\displaystyle ha}$
56 700 ${\displaystyle m^2}$ = ${\displaystyle ha}$	125 ${\displaystyle da{m}^2}$ = ${\displaystyle ha}$	7,12 ${\displaystyle a}$ = ${\displaystyle m^2}$
15 400 ${\displaystyle m^2}$ = ${\displaystyle ha}$	0,45 ${\displaystyle ha}$ = ${\displaystyle m^2}$	26,4 ${\displaystyle a}$ = ${\displaystyle m^2}$