Filed from 5 published puzzles

ADDING

Set to 4 different clues across 5 published puzzles, most often “Totaling” — The New York Times, Monday, 16 October 2006.

6 letters

Every clue on record, most used first

Totaling2 times
The New York Times — Monday, 16 October 2006
Simple arithmeticonce
The New York Times — Sunday, 22 January 2006
Summingonce
The New York Times — Tuesday, 25 May 2004
Calculator jobonce
The New York Times — Saturday, 4 August 2001