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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 437 · 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. 1.597 × 3 =
  2. 2.241 × 9 =
  3. 3.584 × 4 =
  4. 4.602 × 9 =
  5. 5.531 × 5 =
  6. 6.144 × 3 =
  7. 7.649 × 7 =
  8. 8.607 × 9 =
  9. 9.929 × 3 =
  10. 10.705 × 9 =
  11. 11.436 × 9 =
  12. 12.425 × 4 =
  13. 13.526 × 6 =
  14. 14.844 × 4 =
  15. 15.905 × 6 =
  16. 16.652 × 7 =
  17. 17.176 × 9 =
  18. 18.611 × 7 =
  19. 19.581 × 6 =
  20. 20.731 × 9 =
  21. 21.454 × 3 =
  22. 22.841 × 5 =
  23. 23.297 × 9 =
  24. 24.685 × 7 =
  25. 25.163 × 5 =
  26. 26.384 × 5 =
  27. 27.574 × 6 =
  28. 28.151 × 9 =
  29. 29.785 × 6 =
  30. 30.701 × 4 =
  31. 31.186 × 3 =
  32. 32.835 × 8 =
  33. 33.668 × 6 =
  34. 34.756 × 7 =
  35. 35.551 × 8 =
  36. 36.642 × 3 =
  37. 37.375 × 5 =
  38. 38.398 × 7 =
  39. 39.266 × 6 =
  40. 40.112 × 8 =

Answer key

  1. 1791
  2. 2169
  3. 2336
  4. 5418
  5. 2655
  6. 432
  7. 4543
  8. 5463
  9. 2787
  10. 6345
  11. 3924
  12. 1700
  13. 3156
  14. 3376
  15. 5430
  16. 4564
  17. 1584
  18. 4277
  19. 3486
  20. 6579
  21. 1362
  22. 4205
  23. 2673
  24. 4795
  25. 815
  26. 1920
  27. 3444
  28. 1359
  29. 4710
  30. 2804
  31. 558
  32. 6680
  33. 4008
  34. 5292
  35. 4408
  36. 1926
  37. 1875
  38. 2786
  39. 1596
  40. 896

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