| 100% | EVEN | 4 | Like the sums of two primes in Goldbach’s conjecture |
| 49% | EVEN | 4 | Like the sum of any two odd numbers |
| 49% | EVEN | 4 | What the sum of two primes greater than two always is |
| 45% | FORTYONE | 8 | Prime number, the sum of two squares, 16 + 25 |
| 45% | STORIED | 7 | Like the Tower of Babel, in two ways |
| 41% | ADDS | 4 | Calculates the sum of two numbers |
| 41% | ADDING | 6 | Finding the sum of two numbers |
| 41% | ADD | 3 | Calculate the sum of two numbers |
| 40% | TUE | 3 | The first of two T's, in a familiar sequence |
| 40% | ADD | 3 | Find the sum of two or more numbers |
| 40% | ADDED | 5 | Found the sum of two or more numbers |
| 40% | ARCH | 4 | One of two in the McDonald's logo |
| 40% | IAMB | 4 | One of two in The Winter's Tale |
| 40% | LESSER | 6 | Like the preferred of two evils |
| 39% | ARCH | 4 | One of two in the McDonald's "golden" symbol |
| 39% | ELDER | 5 | Like the first of two siblings, agewise |
| 39% | ODD | 3 | Like the number of years in a periodical cicada’s life cycle |
| 38% | TENTH | 5 | Like the secretary of commerce, in the U.S. presidential line of succession |
| 38% | FALLINGDOWN | 11 | Like the contents of this puzzle's circled squares, in a nursery rhyme |
| 38% | SILKEN | 6 | Like the “fringe of his faint eyes,” in Shelley’s elegy for Keats |
| 38% | ASIAN | 5 | Like almost two-thirds of the earth's population |
| 38% | SILVIA | 6 | The duke's daughter in Two Gentlemen of Verona |
| 38% | ASONANT | 7 | Like the s in aisle |
| 38% | ODD | 3 | Like two out of three numbers in the Fibonacci sequence |
| 38% | NOHIT | 5 | Like two of Max Scherzer's games in 2015 (Hyph.) |
| 37% | ASEA | 4 | Like Brandy's lover in the song, most of the time |
| 37% | COEQUALLY | 9 | In a way that's like people of the same rank |
| 37% | TEN | 3 | Sum of the first three prime numbers |
| 37% | CLEFT | 5 | Like the rock in "Rock of Ages" |
| 37% | ARID | 4 | Like the Sahara, in terms of climate |