Multiply by 1 - 6, Multiply by 7 - 12, Multiply by 1 - 12
Multiply by 1 - 4, Multiply by 5 - 8, Multiply by 9 -12
Multiply by 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
Multiply by 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12