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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 185 · 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. 1.671 × 3 =
  2. 2.633 × 9 =
  3. 3.971 × 4 =
  4. 4.572 × 5 =
  5. 5.151 × 6 =
  6. 6.847 × 7 =
  7. 7.128 × 5 =
  8. 8.141 × 6 =
  9. 9.551 × 4 =
  10. 10.981 × 3 =
  11. 11.471 × 8 =
  12. 12.841 × 3 =
  13. 13.221 × 4 =
  14. 14.899 × 3 =
  15. 15.576 × 6 =
  16. 16.427 × 9 =
  17. 17.611 × 8 =
  18. 18.136 × 3 =
  19. 19.601 × 4 =
  20. 20.951 × 5 =
  21. 21.201 × 5 =
  22. 22.683 × 9 =
  23. 23.257 × 6 =
  24. 24.586 × 6 =
  25. 25.673 × 3 =
  26. 26.286 × 9 =
  27. 27.134 × 5 =
  28. 28.411 × 9 =
  29. 29.818 × 4 =
  30. 30.531 × 9 =
  31. 31.481 × 5 =
  32. 32.623 × 3 =
  33. 33.271 × 6 =
  34. 34.737 × 3 =
  35. 35.342 × 6 =
  36. 36.471 × 7 =
  37. 37.981 × 4 =
  38. 38.881 × 6 =
  39. 39.879 × 8 =
  40. 40.908 × 4 =

Answer key

  1. 2013
  2. 5697
  3. 3884
  4. 2860
  5. 906
  6. 5929
  7. 640
  8. 846
  9. 2204
  10. 2943
  11. 3768
  12. 2523
  13. 884
  14. 2697
  15. 3456
  16. 3843
  17. 4888
  18. 408
  19. 2404
  20. 4755
  21. 1005
  22. 6147
  23. 1542
  24. 3516
  25. 2019
  26. 2574
  27. 670
  28. 3699
  29. 3272
  30. 4779
  31. 2405
  32. 1869
  33. 1626
  34. 2211
  35. 2052
  36. 3297
  37. 3924
  38. 5286
  39. 7032
  40. 3632

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