Pak sandy mempunyai 4 petak tanah yg luasnya 40 are, 0,5 hektare, 35 dam², & 2.500 m² luas tanh pak sandy adalah

1 are = 100 m^2
1 ha = 10.000 m^2
1 dam^2 = 100 m^2
40 are + 0,5 ha + 35 dam^2 + 2.500 m^2
= 4.000 + 5.000 + 3.500 + 2.500
= 15.000 m^2
atau 1,5 ha ( hektar )

Kelas 5 Matematika
Bab Pengukuran

Luas tanah Pak Sandy
= 40 are + 0,5 hektare + 35 dam² + 2.500 m²
= 40 are + 0,5 x 100 are + 35 x 1 are + (2.500 : 100) are
= 40 are + 50 are + 35 are + 25 are
= 150 are
= 150 x 100 m²
= 15.000 m²