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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 382 · 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. 1.322 × 7 =
  2. 2.865 × 3 =
  3. 3.945 × 9 =
  4. 4.671 × 7 =
  5. 5.364 × 4 =
  6. 6.717 × 6 =
  7. 7.789 × 4 =
  8. 8.361 × 4 =
  9. 9.847 × 5 =
  10. 10.459 × 4 =
  11. 11.821 × 9 =
  12. 12.863 × 8 =
  13. 13.792 × 9 =
  14. 14.921 × 8 =
  15. 15.616 × 5 =
  16. 16.576 × 6 =
  17. 17.291 × 3 =
  18. 18.342 × 6 =
  19. 19.952 × 6 =
  20. 20.594 × 8 =
  21. 21.866 × 3 =
  22. 22.463 × 9 =
  23. 23.828 × 4 =
  24. 24.263 × 6 =
  25. 25.426 × 4 =
  26. 26.515 × 6 =
  27. 27.395 × 4 =
  28. 28.771 × 7 =
  29. 29.461 × 4 =
  30. 30.501 × 6 =
  31. 31.748 × 7 =
  32. 32.343 × 9 =
  33. 33.383 × 9 =
  34. 34.986 × 7 =
  35. 35.356 × 4 =
  36. 36.222 × 9 =
  37. 37.751 × 5 =
  38. 38.445 × 4 =
  39. 39.824 × 5 =
  40. 40.897 × 9 =

Answer key

  1. 2254
  2. 2595
  3. 8505
  4. 4697
  5. 1456
  6. 4302
  7. 3156
  8. 1444
  9. 4235
  10. 1836
  11. 7389
  12. 6904
  13. 7128
  14. 7368
  15. 3080
  16. 3456
  17. 873
  18. 2052
  19. 5712
  20. 4752
  21. 2598
  22. 4167
  23. 3312
  24. 1578
  25. 1704
  26. 3090
  27. 1580
  28. 5397
  29. 1844
  30. 3006
  31. 5236
  32. 3087
  33. 3447
  34. 6902
  35. 1424
  36. 1998
  37. 3755
  38. 1780
  39. 4120
  40. 8073

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