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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 515 · 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. 1.781 × 4 =
  2. 2.183 × 5 =
  3. 3.412 × 3 =
  4. 4.725 × 8 =
  5. 5.231 × 6 =
  6. 6.286 × 3 =
  7. 7.472 × 5 =
  8. 8.821 × 4 =
  9. 9.643 × 8 =
  10. 10.276 × 6 =
  11. 11.321 × 7 =
  12. 12.804 × 7 =
  13. 13.177 × 3 =
  14. 14.265 × 3 =
  15. 15.502 × 6 =
  16. 16.269 × 9 =
  17. 17.246 × 7 =
  18. 18.888 × 5 =
  19. 19.629 × 5 =
  20. 20.939 × 6 =
  21. 21.184 × 4 =
  22. 22.257 × 7 =
  23. 23.163 × 8 =
  24. 24.471 × 4 =
  25. 25.715 × 5 =
  26. 26.367 × 6 =
  27. 27.644 × 6 =
  28. 28.672 × 9 =
  29. 29.794 × 6 =
  30. 30.291 × 3 =
  31. 31.403 × 8 =
  32. 32.674 × 8 =
  33. 33.571 × 7 =
  34. 34.607 × 7 =
  35. 35.961 × 4 =
  36. 36.958 × 3 =
  37. 37.757 × 5 =
  38. 38.851 × 9 =
  39. 39.989 × 7 =
  40. 40.273 × 4 =

Answer key

  1. 3124
  2. 915
  3. 1236
  4. 5800
  5. 1386
  6. 858
  7. 2360
  8. 3284
  9. 5144
  10. 1656
  11. 2247
  12. 5628
  13. 531
  14. 795
  15. 3012
  16. 2421
  17. 1722
  18. 4440
  19. 3145
  20. 5634
  21. 736
  22. 1799
  23. 1304
  24. 1884
  25. 3575
  26. 2202
  27. 3864
  28. 6048
  29. 4764
  30. 873
  31. 3224
  32. 5392
  33. 3997
  34. 4249
  35. 3844
  36. 2874
  37. 3785
  38. 7659
  39. 6923
  40. 1092

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