| Answer | Crossword Clue |
|---|---|
| RAD | A basic number in mathematics: Abbr. |
| sphingosine | A basic compound that is a constituent of a number of substances important in the metabolism of nerve cells, esp. sphingomyelins |
| SURD | Irrational number in mathematics. |
| mathematics | The abstract science of number, quantity, and space. Mathematics may be studied in its own right (pure mathematics), or as it is applied to other disciplines such as physics and engineering (applied mathematics) |
| GCM | A number in math: Abbr. |
| RTE | Number in a shield symbol: Abbr. |
