00 01 02 03 04 05 06 07 08 09 ten 11 12 13 14 fifteen sixteen 17 18 19 20 21 22 23 24 twenty five 26 27 28 29 thirty 31 32 33 34 35 36 37 38 39 40 41 forty two 43 forty four forty five 46 forty seven forty eight 49 fifty 51 52 53 fifty four 55 56 57 58 59 60 61 62 63 sixty four 65 66 67 sixty eight sixty nine 70 71 seventy two