MATH ADDITION

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Across
  1. 2. 23+57
  2. 3. 13+11
  3. 5. 61+12
  4. 6. 31+42
  5. 8. 17+35
  6. 9. 54+69
Down
  1. 1. 9+3
  2. 2. 54+29
  3. 4. 31+16
  4. 5. 54+18
  5. 7. 13+18
  6. 8. 42+11