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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 670 · 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. 1.231 × 6 =
  2. 2.959 × 7 =
  3. 3.954 × 5 =
  4. 4.271 × 3 =
  5. 5.945 × 9 =
  6. 6.205 × 6 =
  7. 7.185 × 4 =
  8. 8.569 × 8 =
  9. 9.485 × 9 =
  10. 10.989 × 8 =
  11. 11.596 × 7 =
  12. 12.325 × 4 =
  13. 13.147 × 3 =
  14. 14.607 × 8 =
  15. 15.566 × 4 =
  16. 16.671 × 8 =
  17. 17.218 × 8 =
  18. 18.741 × 3 =
  19. 19.511 × 4 =
  20. 20.739 × 8 =
  21. 21.382 × 4 =
  22. 22.469 × 6 =
  23. 23.773 × 6 =
  24. 24.941 × 5 =
  25. 25.381 × 4 =
  26. 26.374 × 9 =
  27. 27.289 × 8 =
  28. 28.651 × 7 =
  29. 29.559 × 4 =
  30. 30.247 × 9 =
  31. 31.257 × 3 =
  32. 32.724 × 7 =
  33. 33.661 × 5 =
  34. 34.122 × 7 =
  35. 35.865 × 8 =
  36. 36.211 × 4 =
  37. 37.176 × 5 =
  38. 38.219 × 4 =
  39. 39.832 × 9 =
  40. 40.509 × 9 =

Answer key

  1. 1386
  2. 6713
  3. 4770
  4. 813
  5. 8505
  6. 1230
  7. 740
  8. 4552
  9. 4365
  10. 7912
  11. 4172
  12. 1300
  13. 441
  14. 4856
  15. 2264
  16. 5368
  17. 1744
  18. 2223
  19. 2044
  20. 5912
  21. 1528
  22. 2814
  23. 4638
  24. 4705
  25. 1524
  26. 3366
  27. 2312
  28. 4557
  29. 2236
  30. 2223
  31. 771
  32. 5068
  33. 3305
  34. 854
  35. 6920
  36. 844
  37. 880
  38. 876
  39. 7488
  40. 4581

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