Cross Number Puzzle

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12345678910
Across
  1. 2. 17√5- 17√5 = 34√5
  2. 5. √(7&21) = √(7&504)
  3. 7. =15√2
  4. 9. 52√8-29√8=23√8
  5. 10. 30√11+30√11= 60√11
Down
  1. 1. ) divided by √(4^2+5^2 ) = 2
  2. 3. 8√230+ 10√230= 18√230
  3. 4. . √(10&8) = √(10&64)
  4. 6. 28√2 - 21√2 = 27√2
  5. 8. 22√2 + 20√2 = 42√2