Maths

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Across
  1. 3. What a fish breaths through , 10006 - (2200 + 90)
  2. 4. A female gander , (900 x 45) -5494
  3. 7. Float like a butterfly, sting like a _____ , 26(10 +3)
  4. 8. The river that begins in Gougane Barra , 9(70)-293
  5. 9. Fell in love with a beast , 6840 + 368 + 24298
Down
  1. 1. Another word for sick , 1092 - 424 + 103
  2. 2. The sound made by a snake , 6(900 + 19)
  3. 5. A woodwind instrument , (30 x 56) +1400
  4. 6. Sings the song 'Starry eyed' ,(30 x 120) +28173
  5. 7. How to change a substance from a liquid to a gas , 36972/9