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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 32 · 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. 1.131 × 5 =
  2. 2.745 × 6 =
  3. 3.112 × 7 =
  4. 4.943 × 5 =
  5. 5.265 × 9 =
  6. 6.392 × 9 =
  7. 7.248 × 4 =
  8. 8.642 × 8 =
  9. 9.892 × 4 =
  10. 10.405 × 4 =
  11. 11.637 × 7 =
  12. 12.701 × 5 =
  13. 13.331 × 3 =
  14. 14.763 × 5 =
  15. 15.896 × 6 =
  16. 16.726 × 6 =
  17. 17.302 × 6 =
  18. 18.196 × 3 =
  19. 19.297 × 9 =
  20. 20.427 × 8 =
  21. 21.867 × 5 =
  22. 22.444 × 3 =
  23. 23.498 × 6 =
  24. 24.132 × 9 =
  25. 25.332 × 7 =
  26. 26.213 × 3 =
  27. 27.391 × 9 =
  28. 28.491 × 6 =
  29. 29.931 × 3 =
  30. 30.389 × 7 =
  31. 31.224 × 3 =
  32. 32.818 × 3 =
  33. 33.887 × 5 =
  34. 34.471 × 4 =
  35. 35.645 × 5 =
  36. 36.209 × 4 =
  37. 37.289 × 9 =
  38. 38.854 × 6 =
  39. 39.886 × 5 =
  40. 40.203 × 3 =

Answer key

  1. 655
  2. 4470
  3. 784
  4. 4715
  5. 2385
  6. 3528
  7. 992
  8. 5136
  9. 3568
  10. 1620
  11. 4459
  12. 3505
  13. 993
  14. 3815
  15. 5376
  16. 4356
  17. 1812
  18. 588
  19. 2673
  20. 3416
  21. 4335
  22. 1332
  23. 2988
  24. 1188
  25. 2324
  26. 639
  27. 3519
  28. 2946
  29. 2793
  30. 2723
  31. 672
  32. 2454
  33. 4435
  34. 1884
  35. 3225
  36. 836
  37. 2601
  38. 5124
  39. 4430
  40. 609

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