← Split and join: 4-digit sums lesson New set →

4-Digit Mental Addition and Subtraction Worksheet

Speed calculation lesson 16: Split and join: 4-digit sums · Set 195 · 40 questions
TalentJR

The fast method (Split and join): Split each 4-digit number into two 2-digit halves: 4768 → 47|68. Work out the left halves and the right halves on their own. Adding: a right half of 100 or more carries 1 to the left half. Subtracting: right half too small? Borrow 1 from the left half — it is worth 100 on the right.

NameDateTime takenScore ___ / 40
  1. 1.7429 − 5207 =
  2. 2.7724 + 3984 =
  3. 3.5845 − 5187 =
  4. 4.5081 − 3183 =
  5. 5.5195 + 3441 =
  6. 6.1972 + 2336 =
  7. 7.7008 + 3199 =
  8. 8.3511 + 6080 =
  9. 9.1825 + 7672 =
  10. 10.3583 + 4700 =
  11. 11.5821 + 5636 =
  12. 12.8918 − 2286 =
  13. 13.6324 + 5457 =
  14. 14.3024 + 2395 =
  15. 15.6075 − 4314 =
  16. 16.6446 + 4572 =
  17. 17.6488 + 2006 =
  18. 18.4700 − 1631 =
  19. 19.5818 + 4885 =
  20. 20.3835 + 3416 =
  21. 21.1880 + 1580 =
  22. 22.6141 − 3004 =
  23. 23.2726 + 4207 =
  24. 24.8119 + 2307 =
  25. 25.3085 + 3052 =
  26. 26.6176 + 2317 =
  27. 27.1383 + 8291 =
  28. 28.3224 − 2919 =
  29. 29.6164 + 5919 =
  30. 30.4820 + 4527 =
  31. 31.7242 − 6799 =
  32. 32.4769 − 2899 =
  33. 33.6733 + 2874 =
  34. 34.6639 + 1146 =
  35. 35.7081 − 5754 =
  36. 36.3397 − 2644 =
  37. 37.2626 + 1406 =
  38. 38.4885 + 6692 =
  39. 39.1672 + 1758 =
  40. 40.8977 + 3384 =

Answer key

  1. 2222
  2. 11708
  3. 658
  4. 1898
  5. 8636
  6. 4308
  7. 10207
  8. 9591
  9. 9497
  10. 8283
  11. 11457
  12. 6632
  13. 11781
  14. 5419
  15. 1761
  16. 11018
  17. 8494
  18. 3069
  19. 10703
  20. 7251
  21. 3460
  22. 3137
  23. 6933
  24. 10426
  25. 6137
  26. 8493
  27. 9674
  28. 305
  29. 12083
  30. 9347
  31. 443
  32. 1870
  33. 9607
  34. 7785
  35. 1327
  36. 753
  37. 4032
  38. 11577
  39. 3430
  40. 12361

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