Across
- 4. a white material that makes up the skeleton
- 5. A number, usually 0,used to hold a place
- 8. An organised scheme or method
- 12. Estimated worth or quantity of a digit
- 14. Horizontal line written over a number to give meaning
- 15. The nature of the square root of a negative value
Down
- 1. A word or symbol used to represent a quantity
- 2. Not imaginary
- 3. A branch of math consisting of integrals
- 6. the study of past events
- 7. algebraic operation for 2 similar vectors
- 9. technique used to find volumes of solids
- 10. a large family of languages spoken in Central America and Mexico
- 11. any of the numerals from 0 to 9
- 13. position of a digit or number