Maths Crossword Puzzle

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Across
  1. 1. A whole number that cannot be divided exactly by 2
  2. 8. The study of mathematical symbols and the rules for manipulating these symbols
  3. 9. Rounding a number to its nearest place value
  4. 10. The number that multiplies by itself three times to create a cubic value
  5. 12. Combination of numbers and symbols that show the value of something
  6. 15. Mathematical expression written in an expanded form.
  7. 17. A shortcut of the operation of repeated addition of the same number
  8. 18. A number that multiplied by itself to produce specific quantity
  9. 19. A whole number that can be divided by 2 and have no remainder
Down
  1. 2. A fraction written in digits based of tens
  2. 3. A whole number that can be positive, negative or zero
  3. 4. Finding what to multiply to give the original number
  4. 5. Number we can multiply together to get another number
  5. 6. How many times a number is multiplied by itself
  6. 7. A whole number greater than 1 and only have factor 1 and itself
  7. 10. A whole number that has more than two different factors
  8. 11. To rewrite maths expression to less complex form
  9. 13. A value that represents a quantity along a number line
  10. 14. Something close to the correct answer
  11. 16. A numerical quantity that is not a whole number