The Number spelling from 1 to 20 are as follows: 1 = One 2 = Two 3 = Three 4 = Four 5 = Five 6 = Six 7 = Seven 8 = Eight 9 = Nine 10 = Ten 11 = Eleven 12 = Twelve 13 = Thirteen 14 = Fourteen 15 = Fifteen 16 = Sixteen 17 = Seventeen 18 = Eighteen 19 = Nineteen 20 = Twenty