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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 83 · 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. 1.923 × 4 =
  2. 2.366 × 6 =
  3. 3.769 × 5 =
  4. 4.488 × 3 =
  5. 5.664 × 6 =
  6. 6.637 × 3 =
  7. 7.861 × 5 =
  8. 8.233 × 3 =
  9. 9.377 × 8 =
  10. 10.515 × 9 =
  11. 11.837 × 4 =
  12. 12.414 × 7 =
  13. 13.171 × 4 =
  14. 14.633 × 8 =
  15. 15.988 × 9 =
  16. 16.199 × 4 =
  17. 17.662 × 4 =
  18. 18.331 × 9 =
  19. 19.327 × 8 =
  20. 20.538 × 7 =
  21. 21.951 × 5 =
  22. 22.929 × 5 =
  23. 23.918 × 7 =
  24. 24.555 × 9 =
  25. 25.987 × 5 =
  26. 26.406 × 3 =
  27. 27.408 × 4 =
  28. 28.204 × 7 =
  29. 29.941 × 4 =
  30. 30.204 × 3 =
  31. 31.527 × 4 =
  32. 32.271 × 3 =
  33. 33.294 × 9 =
  34. 34.624 × 4 =
  35. 35.179 × 8 =
  36. 36.192 × 8 =
  37. 37.984 × 6 =
  38. 38.522 × 5 =
  39. 39.888 × 3 =
  40. 40.671 × 4 =

Answer key

  1. 3692
  2. 2196
  3. 3845
  4. 1464
  5. 3984
  6. 1911
  7. 4305
  8. 699
  9. 3016
  10. 4635
  11. 3348
  12. 2898
  13. 684
  14. 5064
  15. 8892
  16. 796
  17. 2648
  18. 2979
  19. 2616
  20. 3766
  21. 4755
  22. 4645
  23. 6426
  24. 4995
  25. 4935
  26. 1218
  27. 1632
  28. 1428
  29. 3764
  30. 612
  31. 2108
  32. 813
  33. 2646
  34. 2496
  35. 1432
  36. 1536
  37. 5904
  38. 2610
  39. 2664
  40. 2684

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