Spelling

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 1. A number in the ___ system (7)
  2. 6. The dividend of a fraction (9)
  3. 7. An arithmetic operation in which the difference between two numbers is calculated (11)
  4. 9. One of the portions into which something is regarded as divided and which together constitute (8)
  5. 11. A small machine that is used for mathematical ___ (10)
  6. 12. The boundary line or the area immediately inside the boundary (9)
  7. 14. To arrange by systematic planning and united effort (8)
  8. 15. A perceptual structure (7)
  9. 16. A closed plane figure bounded by straight sides (7)

Down

  1. 2. Questioning a statement and demanding an explanation (9)
  2. 3. A number written as one quantity divided by another, with a nonzero denominator. (8)
  3. 4. A measure of how likely it is that some event will occur (11)
  4. 5. The phenomenon of a propagating wave being thrown back from a surface (10)
  5. 8. A written communication in a second language having the same meaning as the written communication (11)
  6. 10. A visual representation of the relations between certain quantities, represented as points (5)
  7. 13. A transformation in which the coordinate axes are ___ by a fixed angle about the origin (8)