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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 17 · 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. 1.174 × 6 =
  2. 2.714 × 7 =
  3. 3.791 × 5 =
  4. 4.981 × 9 =
  5. 5.833 × 3 =
  6. 6.853 × 4 =
  7. 7.943 × 3 =
  8. 8.688 × 3 =
  9. 9.336 × 5 =
  10. 10.189 × 4 =
  11. 11.205 × 5 =
  12. 12.182 × 3 =
  13. 13.133 × 8 =
  14. 14.418 × 4 =
  15. 15.724 × 4 =
  16. 16.528 × 3 =
  17. 17.134 × 6 =
  18. 18.749 × 6 =
  19. 19.512 × 8 =
  20. 20.126 × 8 =
  21. 21.641 × 3 =
  22. 22.136 × 8 =
  23. 23.674 × 3 =
  24. 24.405 × 3 =
  25. 25.891 × 3 =
  26. 26.469 × 3 =
  27. 27.761 × 4 =
  28. 28.871 × 8 =
  29. 29.353 × 8 =
  30. 30.669 × 4 =
  31. 31.376 × 4 =
  32. 32.343 × 3 =
  33. 33.581 × 4 =
  34. 34.405 × 5 =
  35. 35.121 × 5 =
  36. 36.446 × 7 =
  37. 37.251 × 6 =
  38. 38.728 × 3 =
  39. 39.324 × 3 =
  40. 40.914 × 3 =

Answer key

  1. 1044
  2. 4998
  3. 3955
  4. 8829
  5. 2499
  6. 3412
  7. 2829
  8. 2064
  9. 1680
  10. 756
  11. 1025
  12. 546
  13. 1064
  14. 1672
  15. 2896
  16. 1584
  17. 804
  18. 4494
  19. 4096
  20. 1008
  21. 1923
  22. 1088
  23. 2022
  24. 1215
  25. 2673
  26. 1407
  27. 3044
  28. 6968
  29. 2824
  30. 2676
  31. 1504
  32. 1029
  33. 2324
  34. 2025
  35. 605
  36. 3122
  37. 1506
  38. 2184
  39. 972
  40. 2742

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