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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 307 · 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. 1.164 × 8 =
  2. 2.954 × 8 =
  3. 3.934 × 6 =
  4. 4.906 × 8 =
  5. 5.585 × 5 =
  6. 6.555 × 5 =
  7. 7.459 × 3 =
  8. 8.279 × 8 =
  9. 9.511 × 4 =
  10. 10.328 × 9 =
  11. 11.444 × 4 =
  12. 12.688 × 3 =
  13. 13.647 × 4 =
  14. 14.782 × 7 =
  15. 15.508 × 5 =
  16. 16.911 × 7 =
  17. 17.516 × 4 =
  18. 18.477 × 7 =
  19. 19.977 × 4 =
  20. 20.153 × 5 =
  21. 21.961 × 8 =
  22. 22.781 × 7 =
  23. 23.359 × 3 =
  24. 24.644 × 3 =
  25. 25.362 × 4 =
  26. 26.212 × 8 =
  27. 27.703 × 9 =
  28. 28.931 × 4 =
  29. 29.832 × 8 =
  30. 30.591 × 7 =
  31. 31.146 × 3 =
  32. 32.225 × 7 =
  33. 33.287 × 9 =
  34. 34.267 × 3 =
  35. 35.319 × 6 =
  36. 36.971 × 7 =
  37. 37.298 × 3 =
  38. 38.601 × 9 =
  39. 39.524 × 8 =
  40. 40.861 × 9 =

Answer key

  1. 1312
  2. 7632
  3. 5604
  4. 7248
  5. 2925
  6. 2775
  7. 1377
  8. 2232
  9. 2044
  10. 2952
  11. 1776
  12. 2064
  13. 2588
  14. 5474
  15. 2540
  16. 6377
  17. 2064
  18. 3339
  19. 3908
  20. 765
  21. 7688
  22. 5467
  23. 1077
  24. 1932
  25. 1448
  26. 1696
  27. 6327
  28. 3724
  29. 6656
  30. 4137
  31. 438
  32. 1575
  33. 2583
  34. 801
  35. 1914
  36. 6797
  37. 894
  38. 5409
  39. 4192
  40. 7749

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