Maths

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Across
  1. 2. my favourite prime number
  2. 6. x
  3. 9. 2.5x2=
  4. 10. 1x9=
  5. 11. this is bad in a test
  6. 13. 7+4=
  7. 15. +
Down
  1. 1. shape with two parallel sides
  2. 3. =+-x division
  3. 4. 1234567
  4. 5. 3+3=
  5. 7. on the ruler
  6. 8. 2+2+2+2=
  7. 12. 0x64=
  8. 14. =
  9. 16. 1+0=