| Answer | Crossword Clue |
|---|---|
| ADD | Combine in a sum |
| TOTALIZE | Combine into a sum. |
| GROUP | Combine in a unit. |
| ADDENDS | Units in a sum |
| PLUS | Sign in a sum |
| ERAT | Sum, in a different form |
| SIGMA | Symbol in a Riemann sum |
| DIM | ... sum (goodies in a Chinese restaurant) |
| KITTY | Sum of money, in a game. |
| COGITO | Start of a line ending in a sum? |
| POLYNOMIAL | In math, the sum of a number of terms |
