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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 4 · 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. 1.869 × 9 =
  2. 2.295 × 6 =
  3. 3.199 × 5 =
  4. 4.792 × 9 =
  5. 5.365 × 5 =
  6. 6.419 × 4 =
  7. 7.334 × 4 =
  8. 8.142 × 9 =
  9. 9.436 × 4 =
  10. 10.737 × 8 =
  11. 11.976 × 4 =
  12. 12.837 × 4 =
  13. 13.244 × 4 =
  14. 14.159 × 3 =
  15. 15.218 × 8 =
  16. 16.411 × 6 =
  17. 17.939 × 7 =
  18. 18.561 × 7 =
  19. 19.161 × 6 =
  20. 20.306 × 6 =
  21. 21.226 × 4 =
  22. 22.683 × 5 =
  23. 23.749 × 4 =
  24. 24.344 × 8 =
  25. 25.847 × 3 =
  26. 26.357 × 6 =
  27. 27.361 × 9 =
  28. 28.457 × 5 =
  29. 29.724 × 8 =
  30. 30.824 × 9 =
  31. 31.123 × 5 =
  32. 32.806 × 8 =
  33. 33.671 × 4 =
  34. 34.324 × 9 =
  35. 35.237 × 3 =
  36. 36.179 × 5 =
  37. 37.588 × 8 =
  38. 38.771 × 9 =
  39. 39.623 × 7 =
  40. 40.316 × 8 =

Answer key

  1. 7821
  2. 1770
  3. 995
  4. 7128
  5. 1825
  6. 1676
  7. 1336
  8. 1278
  9. 1744
  10. 5896
  11. 3904
  12. 3348
  13. 976
  14. 477
  15. 1744
  16. 2466
  17. 6573
  18. 3927
  19. 966
  20. 1836
  21. 904
  22. 3415
  23. 2996
  24. 2752
  25. 2541
  26. 2142
  27. 3249
  28. 2285
  29. 5792
  30. 7416
  31. 615
  32. 6448
  33. 2684
  34. 2916
  35. 711
  36. 895
  37. 4704
  38. 6939
  39. 4361
  40. 2528

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