Sevens: 7x1=7 7x2=14 7x3=21 7x4=28 7x5=35 7x6=42 7x7=49 7x8=56 7x9=63 7x10=70 Thirteens: 13x1=13 13x2=26 13x3=39 13x4=52 13x5=65 13x6=78 13x7=91 13x8=104 13x9=117 13x10=130
C2E
