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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 731 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.332 × 4 =
  2. 2.633 × 4 =
  3. 3.947 × 6 =
  4. 4.292 × 5 =
  5. 5.694 × 9 =
  6. 6.593 × 3 =
  7. 7.691 × 7 =
  8. 8.518 × 5 =
  9. 9.548 × 3 =
  10. 10.463 × 3 =
  11. 11.205 × 6 =
  12. 12.171 × 7 =
  13. 13.631 × 3 =
  14. 14.905 × 3 =
  15. 15.174 × 3 =
  16. 16.731 × 4 =
  17. 17.379 × 5 =
  18. 18.589 × 5 =
  19. 19.801 × 3 =
  20. 20.867 × 5 =
  21. 21.807 × 7 =
  22. 22.851 × 8 =
  23. 23.279 × 8 =
  24. 24.795 × 8 =
  25. 25.315 × 9 =
  26. 26.621 × 7 =
  27. 27.781 × 6 =
  28. 28.307 × 4 =
  29. 29.591 × 6 =
  30. 30.899 × 8 =
  31. 31.451 × 7 =
  32. 32.721 × 7 =
  33. 33.439 × 6 =
  34. 34.761 × 5 =
  35. 35.648 × 5 =
  36. 36.157 × 9 =
  37. 37.899 × 7 =
  38. 38.724 × 6 =
  39. 39.638 × 8 =
  40. 40.281 × 4 =

Answer key

  1. 1328
  2. 2532
  3. 5682
  4. 1460
  5. 6246
  6. 1779
  7. 4837
  8. 2590
  9. 1644
  10. 1389
  11. 1230
  12. 1197
  13. 1893
  14. 2715
  15. 522
  16. 2924
  17. 1895
  18. 2945
  19. 2403
  20. 4335
  21. 5649
  22. 6808
  23. 2232
  24. 6360
  25. 2835
  26. 4347
  27. 4686
  28. 1228
  29. 3546
  30. 7192
  31. 3157
  32. 5047
  33. 2634
  34. 3805
  35. 3240
  36. 1413
  37. 6293
  38. 4344
  39. 5104
  40. 1124

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