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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 676 · 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. 1.297 × 3 =
  2. 2.888 × 3 =
  3. 3.333 × 9 =
  4. 4.983 × 6 =
  5. 5.639 × 4 =
  6. 6.307 × 5 =
  7. 7.363 × 5 =
  8. 8.756 × 4 =
  9. 9.315 × 5 =
  10. 10.243 × 3 =
  11. 11.694 × 6 =
  12. 12.889 × 9 =
  13. 13.958 × 9 =
  14. 14.401 × 3 =
  15. 15.645 × 8 =
  16. 16.674 × 6 =
  17. 17.829 × 4 =
  18. 18.301 × 6 =
  19. 19.735 × 6 =
  20. 20.431 × 6 =
  21. 21.113 × 8 =
  22. 22.811 × 8 =
  23. 23.258 × 5 =
  24. 24.926 × 5 =
  25. 25.846 × 9 =
  26. 26.461 × 5 =
  27. 27.157 × 9 =
  28. 28.626 × 8 =
  29. 29.547 × 8 =
  30. 30.279 × 6 =
  31. 31.181 × 7 =
  32. 32.932 × 3 =
  33. 33.294 × 5 =
  34. 34.218 × 4 =
  35. 35.858 × 6 =
  36. 36.284 × 7 =
  37. 37.686 × 4 =
  38. 38.928 × 8 =
  39. 39.157 × 3 =
  40. 40.768 × 6 =

Answer key

  1. 891
  2. 2664
  3. 2997
  4. 5898
  5. 2556
  6. 1535
  7. 1815
  8. 3024
  9. 1575
  10. 729
  11. 4164
  12. 8001
  13. 8622
  14. 1203
  15. 5160
  16. 4044
  17. 3316
  18. 1806
  19. 4410
  20. 2586
  21. 904
  22. 6488
  23. 1290
  24. 4630
  25. 7614
  26. 2305
  27. 1413
  28. 5008
  29. 4376
  30. 1674
  31. 1267
  32. 2796
  33. 1470
  34. 872
  35. 5148
  36. 1988
  37. 2744
  38. 7424
  39. 471
  40. 4608

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