[질문] 쎈수학5-1 021쪽답지

19번부터:39 4 8 감자:11개,고구마:4개 4 24,48,72 30,60,90 3 48,96 4 20,40,60,80,100,120:30,60,90,120,150,180:60,120,180,240,300,360:60 18,36,54:18