Respuesta :
1) 12, 24, 36, 48, 60, 72
2) 18, 36, 54, 72, 90, 108
3) 40, 80, 120, 160, 200, 240
4) 16, 32, 48, 64, 80, 96
5) 100, 200, 300, 400, 500, 600
6) 25, 50, 75, 100, 125, 150
7) 50, 100, 150, 200, 250, 300
8) 63, 126, 189, 252, 315, 378
what the heck what are they teaching you guys now in elementary