Whole Number Addition and Subtraction

123456789101112
Across
  1. 4. 6631+9843=
  2. 5. 5692+8858=
  3. 6. 7000-3698=
  4. 7. 2071-1320=
  5. 8. 5056+2233=
  6. 10. 3180+6324=
  7. 12. 3850-2526=
Down
  1. 1. 4709-1095=
  2. 2. 7938+1502=
  3. 3. 4850-2616=
  4. 4. 6785+3917=
  5. 5. 4507+7592=
  6. 6. 3040-2723=
  7. 9. 3397-1144=
  8. 11. 5100-1011=