| 8586 | Prime Number Generator | ZX-Spectrum 48K | English |
| 29195 | Prime Numbers | ZX81 1K | English |
| 15181 | Primes by Div | ZX-Spectrum 48K | English |
| 18485 | Probabi | ZX-Spectrum 48K | Spanish |
| 29616 | Probability | ZX81 16K | English |
| 17979 | Prod-Matr | ZX-Spectrum 48K | Spanish |
| 18117 | Prodfrac | ZX-Spectrum 48K | Spanish |
| 8595 | Professional Linear Programming | ZX-Spectrum 48K | English |
| 23557 | Programacion Lineal: Metodo SIMPLEX | ZX-Spectrum 16K | Spanish |
| 27920 | Programy Obliczeniowe | ZX-Spectrum 48K | Polish |
| 18236 | Progresiones Aritmeticas | ZX-Spectrum 48K | Spanish |
| 23187 | Quadratic | ZX-Spectrum 48K | English |
| 24554 | Quadratic Solver | ZX-Spectrum 16K | English |
| 29215 | Quadratische Gleichung | ZX81 16K | German |
| 26447 | Quark | ZX-Spectrum 48K | Italian |
| 17943 | Quicksort | ZX-Spectrum 16K | Spanish |
| 37413 | R.D.M. | ZX-Spectrum 48K | French |
| 39398 | RAE Calculation Practice | ZX-Spectrum 16K | English |
| 18039 | Raices | ZX-Spectrum 48K | Spanish |
| 45651 | Random Distribution | ZX-Spectrum 16K/48K | English |