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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 436 · 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. 1.854 × 3 =
  2. 2.493 × 8 =
  3. 3.645 × 9 =
  4. 4.114 × 8 =
  5. 5.229 × 6 =
  6. 6.881 × 7 =
  7. 7.227 × 8 =
  8. 8.771 × 5 =
  9. 9.163 × 3 =
  10. 10.288 × 7 =
  11. 11.911 × 4 =
  12. 12.456 × 7 =
  13. 13.355 × 4 =
  14. 14.636 × 4 =
  15. 15.444 × 5 =
  16. 16.359 × 6 =
  17. 17.676 × 5 =
  18. 18.356 × 7 =
  19. 19.397 × 5 =
  20. 20.794 × 4 =
  21. 21.823 × 3 =
  22. 22.191 × 3 =
  23. 23.437 × 4 =
  24. 24.365 × 6 =
  25. 25.979 × 6 =
  26. 26.938 × 9 =
  27. 27.176 × 6 =
  28. 28.165 × 5 =
  29. 29.611 × 7 =
  30. 30.299 × 6 =
  31. 31.931 × 9 =
  32. 32.954 × 6 =
  33. 33.169 × 4 =
  34. 34.272 × 7 =
  35. 35.702 × 4 =
  36. 36.155 × 3 =
  37. 37.941 × 4 =
  38. 38.891 × 4 =
  39. 39.931 × 3 =
  40. 40.905 × 3 =

Answer key

  1. 2562
  2. 3944
  3. 5805
  4. 912
  5. 1374
  6. 6167
  7. 1816
  8. 3855
  9. 489
  10. 2016
  11. 3644
  12. 3192
  13. 1420
  14. 2544
  15. 2220
  16. 2154
  17. 3380
  18. 2492
  19. 1985
  20. 3176
  21. 2469
  22. 573
  23. 1748
  24. 2190
  25. 5874
  26. 8442
  27. 1056
  28. 825
  29. 4277
  30. 1794
  31. 8379
  32. 5724
  33. 676
  34. 1904
  35. 2808
  36. 465
  37. 3764
  38. 3564
  39. 2793
  40. 2715

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