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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 487 · 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. 1.304 × 9 =
  2. 2.528 × 8 =
  3. 3.941 × 5 =
  4. 4.629 × 6 =
  5. 5.267 × 5 =
  6. 6.216 × 3 =
  7. 7.302 × 9 =
  8. 8.624 × 8 =
  9. 9.325 × 6 =
  10. 10.789 × 4 =
  11. 11.494 × 8 =
  12. 12.611 × 8 =
  13. 13.595 × 7 =
  14. 14.931 × 7 =
  15. 15.359 × 8 =
  16. 16.738 × 9 =
  17. 17.854 × 8 =
  18. 18.876 × 3 =
  19. 19.951 × 3 =
  20. 20.264 × 6 =
  21. 21.973 × 8 =
  22. 22.331 × 7 =
  23. 23.431 × 8 =
  24. 24.866 × 4 =
  25. 25.534 × 5 =
  26. 26.351 × 4 =
  27. 27.894 × 8 =
  28. 28.839 × 4 =
  29. 29.255 × 3 =
  30. 30.771 × 4 =
  31. 31.163 × 9 =
  32. 32.834 × 3 =
  33. 33.868 × 6 =
  34. 34.789 × 7 =
  35. 35.681 × 6 =
  36. 36.326 × 9 =
  37. 37.842 × 3 =
  38. 38.476 × 5 =
  39. 39.839 × 7 =
  40. 40.225 × 9 =

Answer key

  1. 2736
  2. 4224
  3. 4705
  4. 3774
  5. 1335
  6. 648
  7. 2718
  8. 4992
  9. 1950
  10. 3156
  11. 3952
  12. 4888
  13. 4165
  14. 6517
  15. 2872
  16. 6642
  17. 6832
  18. 2628
  19. 2853
  20. 1584
  21. 7784
  22. 2317
  23. 3448
  24. 3464
  25. 2670
  26. 1404
  27. 7152
  28. 3356
  29. 765
  30. 3084
  31. 1467
  32. 2502
  33. 5208
  34. 5523
  35. 4086
  36. 2934
  37. 2526
  38. 2380
  39. 5873
  40. 2025

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