Addition Crossword

12345678910111213
Across
  1. 1. 5132+3210
  2. 3. 2003+1201
  3. 4. 4034+2202
  4. 6. 5002+2501
  5. 7. 3521+2560
  6. 8. 2945+1832
  7. 9. 4213+3202
  8. 11. 3566+2248
  9. 13. 2159+791
Down
  1. 2. 2157+1089
  2. 3. 2134+1203
  3. 5. 5612+3408
  4. 7. 4458+2316
  5. 10. 3987+1561
  6. 12. 3012+1507