| 100% | EQUATION | 8 | Used in math to solve problems |
| 48% | MARIA | 5 | She's a problem that needs to be solved, in song |
| 47% | ATSCALE | 7 | In the required size to solve a problem |
| 46% | ELEPHANT | 8 | ___ in the room, phrase used to describe an obvious problem no one wants to discuss |
| 46% | BYTRIALANDERROR | 15 | One way to solve problems |
| 46% | QED | 3 | Latin abbr. used in math |
| 44% | MINUS | 5 | Symbol denoted by "-", used in math class |
| 43% | DEUS | 4 | __ ex machina, use to solve a story problem easily |
| 43% | SALESMAN | 8 | "Travelling ___," 2012 film about mathematicians trying to solve problems |
| 42% | NOCOMMENT | 9 | Used in refusing to answer a question |
| 42% | IDEA | 4 | Notion to solve a problem |
| 42% | ZERO | 4 | Digit denoting nothing, that you'd use in math class |
| 42% | TIME | 4 | "A stitch in ___ saves nine," idiom related to problem-solving |
| 42% | REED | 4 | Used in 13 Across to produce a tone |
| 42% | BRUTEFORCE | 10 | Inelegant way to solve a problem |
| 41% | TRIALANDERROR | 13 | Experimental approach to solving a problem |
| 41% | AREA | 4 | Length times breadth calculation, that you'd use in math class |
| 41% | ADD | 3 | Solve some basic math problems |
| 41% | URGE | 4 | Verb used in many emails to senators |
| 40% | RULER | 5 | One might be used in math class or studied in history class |
| 40% | IMPERFECTTENSE | 14 | Verb form in “I used to solve puzzles,” e.g. |
| 40% | AGONY | 5 | ___ aunt (one who tries to solve your problems) |
| 40% | NEWIDEAS | 8 | What it may take to solve old problems |
| 40% | MATHLETE | 8 | Person who might compete to solve geometry problems |
| 40% | COOPERATE | 9 | Work together to solve a problem or puzzle |
| 40% | ENDS | 4 | Final answers to solve in crosswords, e.g. |
| 40% | EARDROP | 7 | Medicine used in your ear to prevent infections |
| 40% | HOE | 3 | Tool used in the garden, to break ground |
| 40% | GELATIN | 7 | Collagen used in products from candy to cosmetics |
| 40% | HALOGEN | 7 | Gas used in incandescent bulbs to intensify light |