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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 376 · 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. 1.343 × 9 =
  2. 2.478 × 8 =
  3. 3.866 × 4 =
  4. 4.629 × 4 =
  5. 5.352 × 3 =
  6. 6.988 × 7 =
  7. 7.534 × 3 =
  8. 8.646 × 3 =
  9. 9.566 × 4 =
  10. 10.213 × 4 =
  11. 11.634 × 6 =
  12. 12.454 × 9 =
  13. 13.378 × 7 =
  14. 14.601 × 3 =
  15. 15.177 × 3 =
  16. 16.137 × 6 =
  17. 17.179 × 5 =
  18. 18.131 × 6 =
  19. 19.249 × 5 =
  20. 20.241 × 4 =
  21. 21.418 × 5 =
  22. 22.371 × 7 =
  23. 23.145 × 9 =
  24. 24.756 × 9 =
  25. 25.371 × 9 =
  26. 26.279 × 3 =
  27. 27.591 × 9 =
  28. 28.611 × 8 =
  29. 29.464 × 9 =
  30. 30.747 × 4 =
  31. 31.897 × 7 =
  32. 32.338 × 6 =
  33. 33.312 × 3 =
  34. 34.574 × 9 =
  35. 35.358 × 7 =
  36. 36.467 × 8 =
  37. 37.301 × 8 =
  38. 38.787 × 5 =
  39. 39.406 × 7 =
  40. 40.266 × 3 =

Answer key

  1. 3087
  2. 3824
  3. 3464
  4. 2516
  5. 1056
  6. 6916
  7. 1602
  8. 1938
  9. 2264
  10. 852
  11. 3804
  12. 4086
  13. 2646
  14. 1803
  15. 531
  16. 822
  17. 895
  18. 786
  19. 1245
  20. 964
  21. 2090
  22. 2597
  23. 1305
  24. 6804
  25. 3339
  26. 837
  27. 5319
  28. 4888
  29. 4176
  30. 2988
  31. 6279
  32. 2028
  33. 936
  34. 5166
  35. 2506
  36. 3736
  37. 2408
  38. 3935
  39. 2842
  40. 798

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