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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 460 · 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. 1.812 × 9 =
  2. 2.731 × 7 =
  3. 3.247 × 6 =
  4. 4.729 × 5 =
  5. 5.536 × 5 =
  6. 6.798 × 9 =
  7. 7.927 × 3 =
  8. 8.317 × 8 =
  9. 9.938 × 8 =
  10. 10.331 × 4 =
  11. 11.576 × 3 =
  12. 12.751 × 4 =
  13. 13.764 × 9 =
  14. 14.511 × 9 =
  15. 15.143 × 3 =
  16. 16.508 × 4 =
  17. 17.533 × 5 =
  18. 18.731 × 6 =
  19. 19.804 × 8 =
  20. 20.681 × 5 =
  21. 21.891 × 9 =
  22. 22.311 × 6 =
  23. 23.636 × 5 =
  24. 24.981 × 7 =
  25. 25.724 × 4 =
  26. 26.927 × 7 =
  27. 27.849 × 8 =
  28. 28.658 × 3 =
  29. 29.573 × 9 =
  30. 30.416 × 4 =
  31. 31.874 × 4 =
  32. 32.988 × 6 =
  33. 33.311 × 5 =
  34. 34.972 × 4 =
  35. 35.825 × 7 =
  36. 36.595 × 9 =
  37. 37.212 × 3 =
  38. 38.677 × 6 =
  39. 39.468 × 3 =
  40. 40.922 × 5 =

Answer key

  1. 7308
  2. 5117
  3. 1482
  4. 3645
  5. 2680
  6. 7182
  7. 2781
  8. 2536
  9. 7504
  10. 1324
  11. 1728
  12. 3004
  13. 6876
  14. 4599
  15. 429
  16. 2032
  17. 2665
  18. 4386
  19. 6432
  20. 3405
  21. 8019
  22. 1866
  23. 3180
  24. 6867
  25. 2896
  26. 6489
  27. 6792
  28. 1974
  29. 5157
  30. 1664
  31. 3496
  32. 5928
  33. 1555
  34. 3888
  35. 5775
  36. 5355
  37. 636
  38. 4062
  39. 1404
  40. 4610

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