Contrôle: De cijfers

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Across
  1. 4. = 9 x 2 + 1
  2. 6. = 175 - 72
  3. 11. = 22 x 3
  4. 12. = 5 x 5
  5. 14. = 90 - 2
Down
  1. 1. = 110 x 2
  2. 2. = 8 x 8
  3. 3. = 50 - 1
  4. 5. = 78 - 26
  5. 7. = 10 x 0
  6. 8. = 89 - 16
  7. 9. = 550 - 50
  8. 10. = 60 - 43
  9. 13. = 4 x 3