Maths Trial Crossword

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Across
  1. 4. Highest power is 2
  2. 6. Single variable
  3. 7. Can work with like terms and unlike terms
Down
  1. 1. Inverse of square root
  2. 2. Only like terms can be used to do this
  3. 3. Highest power is 3
  4. 5. Two variables