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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 171 · 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. 1.541 × 4 =
  2. 2.873 × 9 =
  3. 3.729 × 8 =
  4. 4.551 × 7 =
  5. 5.741 × 4 =
  6. 6.483 × 4 =
  7. 7.588 × 3 =
  8. 8.966 × 3 =
  9. 9.862 × 9 =
  10. 10.511 × 7 =
  11. 11.441 × 6 =
  12. 12.137 × 4 =
  13. 13.849 × 9 =
  14. 14.201 × 5 =
  15. 15.621 × 5 =
  16. 16.448 × 7 =
  17. 17.181 × 4 =
  18. 18.836 × 3 =
  19. 19.922 × 3 =
  20. 20.896 × 9 =
  21. 21.152 × 9 =
  22. 22.761 × 3 =
  23. 23.353 × 6 =
  24. 24.196 × 3 =
  25. 25.732 × 7 =
  26. 26.436 × 3 =
  27. 27.611 × 3 =
  28. 28.186 × 3 =
  29. 29.744 × 8 =
  30. 30.359 × 4 =
  31. 31.588 × 4 =
  32. 32.722 × 3 =
  33. 33.156 × 4 =
  34. 34.781 × 3 =
  35. 35.446 × 5 =
  36. 36.719 × 4 =
  37. 37.306 × 5 =
  38. 38.463 × 9 =
  39. 39.732 × 4 =
  40. 40.712 × 6 =

Answer key

  1. 2164
  2. 7857
  3. 5832
  4. 3857
  5. 2964
  6. 1932
  7. 1764
  8. 2898
  9. 7758
  10. 3577
  11. 2646
  12. 548
  13. 7641
  14. 1005
  15. 3105
  16. 3136
  17. 724
  18. 2508
  19. 2766
  20. 8064
  21. 1368
  22. 2283
  23. 2118
  24. 588
  25. 5124
  26. 1308
  27. 1833
  28. 558
  29. 5952
  30. 1436
  31. 2352
  32. 2166
  33. 624
  34. 2343
  35. 2230
  36. 2876
  37. 1530
  38. 4167
  39. 2928
  40. 4272

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