Numbers

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123456789101112
Across
  1. 2. 4+4=
  2. 4. 15+15=
  3. 6. 2+2=
  4. 7. 10-1=
  5. 11. 20-5=
  6. 12. 10+1=
Down
  1. 1. 4+3=
  2. 3. 1+1=
  3. 4. 2+1=
  4. 5. 5+5=
  5. 6. 3+2=
  6. 8. 3+3=
  7. 9. 3-1=
  8. 10. 10+10=