| Calculus computation | 20 |
| Calculus class letters | 22 |
| Calculus class calculations | 27 |
| Calculus class calculation | 26 |
| Calculus calculations | 21 |
| Calculus calculation: Abbr. | 27 |
| Calculus calculation | 20 |
| Calculus abbr. | 14 |
| Calculus | 8 |
| Calculi | 7 |
| Calculators: abbr. | 18 |
| Calculators' ancestors | 26 |
| Calculators with beads | 22 |
| Calculators that don't need batteries | 41 |
| Calculators often made with bamboo frames | 41 |
| Calculators of yore | 19 |
| Calculators of sorts | 20 |
| Calculators of old | 18 |
| Calculators of distance from earth | 34 |
| Calculators | 11 |
| Calculator: Abbr. | 17 |
| Calculator, at times | 20 |
| Calculator's specialty | 26 |
| Calculator's result | 23 |
| Calculator's cousin | 23 |
| Calculator's ancestor | 25 |
| Calculator's aid | 20 |
| Calculator work | 15 |
| Calculator user | 15 |
| Calculator type | 15 |
| Calculator that has no on-off switch | 36 |
| Calculator that doesn't need batteries | 42 |
| Calculator symbols | 18 |
| Calculator symbol | 17 |
| Calculator screen abbr. | 23 |
| Calculator result | 17 |
| Calculator readout, briefly | 27 |
| Calculator readout | 18 |
| Calculator predecessors | 23 |
| Calculator precursor | 20 |
| Calculator parts, for short | 27 |
| Calculator part | 15 |
| Calculator of old | 17 |
| Calculator of a kind | 20 |
| Calculator message | 18 |
| Calculator key | 14 |
| Calculator job | 14 |
| Calculator function | 19 |
| Calculator figures | 18 |
| Calculator figure | 17 |
| Calculator figs. | 16 |
| Calculator features: Abbr. | 26 |
| Calculator feature, initially | 29 |
| Calculator feature, briefly | 27 |
| Calculator feature | 18 |
| Calculator displays, for short | 30 |
| Calculator displays, briefly | 28 |
| Calculator displays | 19 |
| Calculator display: Abbr. | 25 |
| Calculator display, for short | 29 |
| Calculator display, briefly | 27 |
| Calculator display type | 23 |
| Calculator display components, for short | 40 |
| Calculator display | 18 |
| Calculator component | 20 |
| Calculator company | 18 |
| Calculator buttons: abbr. | 25 |
| Calculator button next to cos | 29 |
| Calculator button | 17 |
| Calculator brand | 16 |
| Calculator ancestor | 19 |
| Calculator | 10 |
| Calculations a high school math student might do | 48 |
| Calculation in Las Vegas | 24 |
| Calculation in geometry | 23 |
| Calculation from tree rings | 27 |
| Calculation for an express delivery? | 36 |
| Calculation done on radians | 27 |
| Calculation aids | 16 |
| Calculating, with "out" | 33 |
| Calculating vipers? | 19 |
| Calculating types (Abbr.) | 25 |
| Calculating types | 17 |
| Calculating subject | 19 |
| Calculating sort, for short? | 28 |
| Calculating sort | 16 |
| Calculating snakes? | 19 |
| Calculating snake? | 18 |
| Calculating reptile? | 20 |
| Calculating pros | 16 |
| Calculating pro | 15 |
| Calculating person, for short | 29 |
| Calculating person | 18 |
| Calculating one, briefly | 24 |
| Calculating one | 15 |
| Calculating machines of old | 27 |
| Calculating machine inventor, 1642 | 34 |
| Calculating instruments | 23 |
| Calculating folks? | 18 |
| Calculating endeavor | 20 |