9 * 1 = 9

9 * 2 = 18

9 * 3 = 27

9 * 4 = 36

9 * 5 = 45

9 * 6 = 54

9 * 7 = 63

9 * 8 = 72

9 * 9 = 81

9 * 10 = 90

9 * 11 = 99

9 * 12 = 108

9 * 13 = 117

9 * 14 = 126

9 * 15 = 135

9 * 16 = 144

9 * 17 = 153

9 * 18 = 162

9 * 19 = 171

9 * 20 = 180