1. act: to perform in or as if in a play; represent dramatically: act out a story
2. active :to make active; cause to function or act
3. add :to find the sum of
4. analyze :to examine methodically by separating into parts and then studying their interrelations; to make a mathematical, chemical, or grammatical; analysis of; break down into components or essential features; to examine carefully and in detail so as to identify causes, key factors, possible results, etc.
5. answer : to speak or write in response; reply to
6. approximate:to come near to; approach closely; to estimate
7. ask :to put a question to; to seek and answer to
8. apply:to make use of as relevant, suitable, or pertinent; to use for or assign to a specific purpose; to put into effect; to put into operation; execute
