Algebra

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