01 02 03 04 05 06 07 08 09 ten 11 12 thirteen 14 fifteen 16 seventeen 18 19 20 21 22 23 24 twenty five 26 27 28 29 thirty 31 32 33 34 35 36 37 38 39 40 forty one 42 43 44 forty five 46 47 48 49 50