1 1/2 gros - 3/4 lusin + 1/2 lusin =...lusin

Kelas 4 Matematika
Bab Pengukuran

1 1/2 gros - 3/4 lusin + 1/2 lusin
= 3/2 x 12 lusin - 3/4 lusin + 2/4 lusin
= 18 lusin - 3/4 lusin + 2/4 lusin
= 72/4 lusin - 3/4 lusin + 2/4 lusin
= 71/4 lusin
= 17 3/4 lusin 

1 gross = 12 lusin
1 1/2 grosir = 18 lusin

1 8 lusin-3/4 lusin+1/2 lusin
= 18(4)-3/4(4)+1/2(4)
= 72-3+2
= 71 lusin