| Number prefix | 13 |
| Number punched in at a point of sale | 36 |
| Number reduced by a third when inverted | 39 |
| Number reflecting rate of burn | 30 |
| Number represented as a one followed by 9 zeros | 47 |
| Number representing one's share | 35 |
| Number request | 14 |
| Number retired by the Orioles for Jim Palmer | 44 |
| Number retired for Steve Largent and Jerry Rice | 47 |
| Number revealer | 15 |
| Number Roger Maris beat | 23 |
| Number signifying "the end" on a wire story | 53 |
| Number skill | 12 |
| Number some are not straight with | 33 |
| Number suffix | 13 |
| Number system base | 18 |
| Number system in which 64 is 100 | 32 |
| Number system in which 8 is 10 | 30 |
| Number system used by the Babylonians | 37 |
| Number system with only 0's and 1's | 43 |
| Number Ted Williams wore | 24 |
| Number that "can play that game" | 42 |
| Number that "Sesame Street" was not "brought to you by" for many years | 90 |
| Number that changes once per year | 33 |
| Number that has gone up since Obama took office | 47 |
| Number that is neither positive nor negative | 44 |
| Number that looks like the letter yogh | 38 |
| Number that may be shocking | 27 |
| Number that might be used when counting backward from 100? | 58 |
| Number that never gets smaller | 30 |
| Number that shouldn't be a denominator | 42 |
| Number that's its own cube | 30 |
| Number that's its own square | 32 |
| Number that's its own square root | 37 |
| Number that's neither positive nor negative | 47 |
| Number that's no longer used | 32 |
| Number that's often in a foreign language | 45 |
| Number that's physically impossible to write out in standard form | 69 |
| Number thatÂ’s its own square | 32 |
| Number the minute hand points to at quarter past | 48 |
| Number the pages | 16 |
| Number the sheets in a book | 27 |
| Number theory and abstract algebra, e.g. | 40 |
| Number theory preposition | 25 |
| Number to count to | 18 |
| Number to tango | 15 |
| Number to the left of a decimal point, maybe | 44 |
| Number to the left of this answer | 33 |
| Number Tom Petty album "Long After Dark" was | 54 |
| Number tossed out | 17 |
| Number two | 10 |
| Number two helper? | 18 |
| Number two in population | 24 |
| Number two of eight | 19 |
| Number two on Forbes's 2011 list of The World's Most Powerful Celebrities | 81 |
| Number two son | 14 |
| Number two wood | 15 |
| Number two woods | 16 |
| Number two, at the casino | 25 |
| Number two: Abbr. | 17 |
| Number twos | 11 |
| Number twos, for short | 22 |
| Number type | 11 |
| Number under @ on a keyboard | 28 |
| Number under a chem. symbol | 27 |
| Number under an ampersand | 25 |
| Number unit | 11 |
| Number used by many | 19 |
| Number whose name inspired the name of a tech company | 53 |
| Number whose square equals its square root | 42 |
| Number with 100 zeroes | 22 |
| Number with 101 digits | 22 |
| Number with 27 zeros | 20 |
| Number with a line under it | 27 |
| Number with a point | 19 |
| Number with no complex part | 27 |
| Number with two | 15 |
| Number worn by Drew Brees | 25 |
| Number worn by Moses Malone and Derek Jeter | 43 |
| Number worn by Pelé | 22 |
| Number worn by Pelé, Diego Maradona, and Zinedine Zidane | 59 |
| Number worn by Ted Williams | 27 |
| Number worn by Vince Young | 26 |
| Number you might have memorized | 31 |
| Number ``for the money'' | 32 |
| Number's target? | 20 |
| Number, as a book | 17 |
| Number, in pilot-speak | 22 |
| Number-2 golf club | 18 |
| Number-calling game | 19 |
| Number-covering game | 20 |
| Number-cruncher's forte | 27 |
| Number-cruncher's input | 27 |
| Number-cruncher's numbers | 29 |
| Number-cruncher's specialty | 31 |
| Number-cruncher, familiarly | 27 |
| Number-crunching grp. | 21 |
| Number-crunching material | 25 |
| Number-crunching pro | 20 |
| Number-guessing fund-raiser | 27 |