Math Crossword puzzle

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Across
  1. 3. – An expression in algebra that consists of only one term.
  2. 6. into equal parts or groups. It is the result of "fair sharing".
  3. 7. notation – A number between 1 and 10 and multiplied by a power of 10. Used for writing very large or very small numbers.
  4. 8. – A symbol that stands for a number.
  5. 9. angle – An angle which measures below 90.
  6. 11. number – A number greater than zero.
  7. 13. per 100. The symbol is %
  8. 17. common factor – The largest factor that is common to two or more numbers.
  9. 18. angle – An angle which is larger than 90 but less than 180.
  10. 19. – The amount which can be held, as measured in cubic units. The volume of a rectangular prism = length times width times height.
Down
  1. 1. number – A number that can be divided by only itself and one.
  2. 2. – To combine terms into fewer terms.
  3. 3. its simplest form) repeated addition.
  4. 4. – An expression in algebra which consists of three terms.
  5. 5. – An expression in algebra that consists of two terms
  6. 10. – A three-sided closed figure. It contains three angles that when combined the sum equals 180.
  7. 12. -part of a whole.
  8. 14. triangle – A triangle containing only acute angles.
  9. 15. number – An integer or fraction such as 7/7 or 9/4 or 5/1. Any number that can be written as a fraction x/y with x a natural number and y an integer.
  10. 16. – A group of objects, numbers, etc.