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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 15 · 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. 1.363 × 4 =
  2. 2.475 × 4 =
  3. 3.908 × 3 =
  4. 4.518 × 7 =
  5. 5.112 × 7 =
  6. 6.231 × 8 =
  7. 7.731 × 9 =
  8. 8.336 × 3 =
  9. 9.161 × 6 =
  10. 10.631 × 7 =
  11. 11.309 × 7 =
  12. 12.664 × 3 =
  13. 13.657 × 3 =
  14. 14.951 × 6 =
  15. 15.781 × 3 =
  16. 16.238 × 3 =
  17. 17.157 × 8 =
  18. 18.322 × 5 =
  19. 19.126 × 6 =
  20. 20.188 × 9 =
  21. 21.978 × 3 =
  22. 22.922 × 9 =
  23. 23.647 × 5 =
  24. 24.789 × 8 =
  25. 25.606 × 5 =
  26. 26.687 × 3 =
  27. 27.588 × 4 =
  28. 28.983 × 9 =
  29. 29.726 × 3 =
  30. 30.681 × 8 =
  31. 31.898 × 6 =
  32. 32.252 × 7 =
  33. 33.739 × 7 =
  34. 34.239 × 7 =
  35. 35.569 × 4 =
  36. 36.988 × 5 =
  37. 37.824 × 4 =
  38. 38.685 × 5 =
  39. 39.989 × 8 =
  40. 40.871 × 6 =

Answer key

  1. 1452
  2. 1900
  3. 2724
  4. 3626
  5. 784
  6. 1848
  7. 6579
  8. 1008
  9. 966
  10. 4417
  11. 2163
  12. 1992
  13. 1971
  14. 5706
  15. 2343
  16. 714
  17. 1256
  18. 1610
  19. 756
  20. 1692
  21. 2934
  22. 8298
  23. 3235
  24. 6312
  25. 3030
  26. 2061
  27. 2352
  28. 8847
  29. 2178
  30. 5448
  31. 5388
  32. 1764
  33. 5173
  34. 1673
  35. 2276
  36. 4940
  37. 3296
  38. 3425
  39. 7912
  40. 5226

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