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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 547 · 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. 1.933 × 9 =
  2. 2.654 × 3 =
  3. 3.899 × 6 =
  4. 4.727 × 4 =
  5. 5.151 × 6 =
  6. 6.177 × 3 =
  7. 7.626 × 8 =
  8. 8.271 × 6 =
  9. 9.831 × 8 =
  10. 10.536 × 3 =
  11. 11.151 × 5 =
  12. 12.123 × 3 =
  13. 13.695 × 8 =
  14. 14.857 × 9 =
  15. 15.141 × 9 =
  16. 16.909 × 6 =
  17. 17.813 × 7 =
  18. 18.981 × 9 =
  19. 19.271 × 4 =
  20. 20.445 × 3 =
  21. 21.243 × 5 =
  22. 22.564 × 3 =
  23. 23.366 × 3 =
  24. 24.194 × 4 =
  25. 25.441 × 8 =
  26. 26.648 × 7 =
  27. 27.499 × 9 =
  28. 28.313 × 5 =
  29. 29.942 × 6 =
  30. 30.309 × 4 =
  31. 31.132 × 9 =
  32. 32.819 × 5 =
  33. 33.783 × 4 =
  34. 34.262 × 5 =
  35. 35.845 × 3 =
  36. 36.385 × 8 =
  37. 37.477 × 3 =
  38. 38.388 × 3 =
  39. 39.785 × 4 =
  40. 40.971 × 4 =

Answer key

  1. 8397
  2. 1962
  3. 5394
  4. 2908
  5. 906
  6. 531
  7. 5008
  8. 1626
  9. 6648
  10. 1608
  11. 755
  12. 369
  13. 5560
  14. 7713
  15. 1269
  16. 5454
  17. 5691
  18. 8829
  19. 1084
  20. 1335
  21. 1215
  22. 1692
  23. 1098
  24. 776
  25. 3528
  26. 4536
  27. 4491
  28. 1565
  29. 5652
  30. 1236
  31. 1188
  32. 4095
  33. 3132
  34. 1310
  35. 2535
  36. 3080
  37. 1431
  38. 1164
  39. 3140
  40. 3884

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