20:6=? 31:5=? 44:5=? 65:9=? 18:4=? 27:5=?

20:6=3(ост.4) 31:5=6(ост.1) 44:5=8(ост.1) 65:9=7(ост.2) 18:4=4(ост.2) 27:5=5(ост.2)