maths questions

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Across
  1. 1. 30x2
  2. 4. 2x4
  3. 7. 7+4
  4. 9. 20-1
Down
  1. 2. 3x9
  2. 3. 5+4
  3. 5. 13-6
  4. 6. hundred 20x5
  5. 8. 3+2