Algebra

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Across
  1. 4. Letters and numbers
  2. 5. it is out of 100
  3. 6. 23
  4. 7. _:_
  5. 8. the opposite of factorising
  6. 9. the opposite of expanding
  7. 10. there are 6 of them
Down
  1. 1. (5,-2)
  2. 2. there is only one variable present
  3. 3. 100m/30mins