Maths

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Across
  1. 4. 3+4
  2. 5. 6-4
  3. 6. 11-3
  4. 8. 5+4
Down
  1. 1. 10-5
  2. 2. 0+1
  3. 3. Two Twoes Are ?
  4. 4. 3+3
  5. 5. 5-2
  6. 7. 7+3