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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 40 · 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. 1.141 × 7 =
  2. 2.789 × 3 =
  3. 3.344 × 3 =
  4. 4.696 × 9 =
  5. 5.185 × 7 =
  6. 6.963 × 4 =
  7. 7.209 × 8 =
  8. 8.597 × 3 =
  9. 9.345 × 9 =
  10. 10.918 × 3 =
  11. 11.567 × 5 =
  12. 12.351 × 4 =
  13. 13.122 × 7 =
  14. 14.211 × 7 =
  15. 15.503 × 4 =
  16. 16.194 × 8 =
  17. 17.154 × 4 =
  18. 18.413 × 6 =
  19. 19.853 × 4 =
  20. 20.112 × 3 =
  21. 21.176 × 9 =
  22. 22.646 × 4 =
  23. 23.898 × 4 =
  24. 24.814 × 3 =
  25. 25.673 × 4 =
  26. 26.334 × 5 =
  27. 27.129 × 9 =
  28. 28.115 × 8 =
  29. 29.376 × 3 =
  30. 30.911 × 3 =
  31. 31.915 × 9 =
  32. 32.741 × 8 =
  33. 33.696 × 5 =
  34. 34.774 × 8 =
  35. 35.353 × 9 =
  36. 36.866 × 3 =
  37. 37.838 × 4 =
  38. 38.912 × 7 =
  39. 39.854 × 8 =
  40. 40.736 × 7 =

Answer key

  1. 987
  2. 2367
  3. 1032
  4. 6264
  5. 1295
  6. 3852
  7. 1672
  8. 1791
  9. 3105
  10. 2754
  11. 2835
  12. 1404
  13. 854
  14. 1477
  15. 2012
  16. 1552
  17. 616
  18. 2478
  19. 3412
  20. 336
  21. 1584
  22. 2584
  23. 3592
  24. 2442
  25. 2692
  26. 1670
  27. 1161
  28. 920
  29. 1128
  30. 2733
  31. 8235
  32. 5928
  33. 3480
  34. 6192
  35. 3177
  36. 2598
  37. 3352
  38. 6384
  39. 6832
  40. 5152

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