Addition Crossword Puzzcle

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Across
  1. 2. 11+8=
  2. 5. 10+1=
  3. 6. 10+10=
  4. 9. 7+7=
  5. 10. 8+8=
Down
  1. 1. 5+5+5=
  2. 3. 15-3=
  3. 4. 17+1=
  4. 7. 10+3=
  5. 8. 9+8=