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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 304 · 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. 1.531 × 7 =
  2. 2.969 × 4 =
  3. 3.347 × 5 =
  4. 4.496 × 4 =
  5. 5.971 × 7 =
  6. 6.231 × 8 =
  7. 7.374 × 5 =
  8. 8.586 × 3 =
  9. 9.977 × 7 =
  10. 10.294 × 7 =
  11. 11.399 × 3 =
  12. 12.224 × 4 =
  13. 13.233 × 7 =
  14. 14.925 × 9 =
  15. 15.474 × 4 =
  16. 16.201 × 9 =
  17. 17.376 × 4 =
  18. 18.739 × 8 =
  19. 19.316 × 4 =
  20. 20.288 × 4 =
  21. 21.451 × 9 =
  22. 22.307 × 6 =
  23. 23.719 × 4 =
  24. 24.277 × 6 =
  25. 25.731 × 3 =
  26. 26.667 × 3 =
  27. 27.954 × 6 =
  28. 28.497 × 5 =
  29. 29.828 × 4 =
  30. 30.525 × 9 =
  31. 31.822 × 3 =
  32. 32.151 × 3 =
  33. 33.557 × 3 =
  34. 34.133 × 6 =
  35. 35.884 × 7 =
  36. 36.488 × 7 =
  37. 37.523 × 7 =
  38. 38.463 × 9 =
  39. 39.119 × 4 =
  40. 40.415 × 3 =

Answer key

  1. 3717
  2. 3876
  3. 1735
  4. 1984
  5. 6797
  6. 1848
  7. 1870
  8. 1758
  9. 6839
  10. 2058
  11. 1197
  12. 896
  13. 1631
  14. 8325
  15. 1896
  16. 1809
  17. 1504
  18. 5912
  19. 1264
  20. 1152
  21. 4059
  22. 1842
  23. 2876
  24. 1662
  25. 2193
  26. 2001
  27. 5724
  28. 2485
  29. 3312
  30. 4725
  31. 2466
  32. 453
  33. 1671
  34. 798
  35. 6188
  36. 3416
  37. 3661
  38. 4167
  39. 476
  40. 1245

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