Addition and Subtraction

1234567
Across
  1. 3. 45142 + 32325
  2. 4. 72108 - 48468
  3. 6. 39175 + 42334
  4. 7. 18724 + 24100
Down
  1. 1. 15261 + 984
  2. 2. 53702 - 48953
  3. 3. 76185 - 5224
  4. 5. 51340-30720