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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 64 · 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. 1.974 × 7 =
  2. 2.662 × 5 =
  3. 3.698 × 8 =
  4. 4.275 × 5 =
  5. 5.743 × 4 =
  6. 6.318 × 3 =
  7. 7.964 × 3 =
  8. 8.338 × 4 =
  9. 9.134 × 4 =
  10. 10.585 × 6 =
  11. 11.686 × 9 =
  12. 12.485 × 9 =
  13. 13.831 × 5 =
  14. 14.464 × 6 =
  15. 15.199 × 4 =
  16. 16.792 × 6 =
  17. 17.211 × 5 =
  18. 18.209 × 9 =
  19. 19.961 × 5 =
  20. 20.576 × 7 =
  21. 21.691 × 9 =
  22. 22.933 × 7 =
  23. 23.494 × 6 =
  24. 24.651 × 6 =
  25. 25.167 × 5 =
  26. 26.693 × 8 =
  27. 27.613 × 9 =
  28. 28.734 × 7 =
  29. 29.595 × 4 =
  30. 30.398 × 8 =
  31. 31.226 × 5 =
  32. 32.823 × 5 =
  33. 33.347 × 5 =
  34. 34.721 × 7 =
  35. 35.181 × 4 =
  36. 36.298 × 3 =
  37. 37.691 × 8 =
  38. 38.216 × 7 =
  39. 39.594 × 3 =
  40. 40.399 × 6 =

Answer key

  1. 6818
  2. 3310
  3. 5584
  4. 1375
  5. 2972
  6. 954
  7. 2892
  8. 1352
  9. 536
  10. 3510
  11. 6174
  12. 4365
  13. 4155
  14. 2784
  15. 796
  16. 4752
  17. 1055
  18. 1881
  19. 4805
  20. 4032
  21. 6219
  22. 6531
  23. 2964
  24. 3906
  25. 835
  26. 5544
  27. 5517
  28. 5138
  29. 2380
  30. 3184
  31. 1130
  32. 4115
  33. 1735
  34. 5047
  35. 724
  36. 894
  37. 5528
  38. 1512
  39. 1782
  40. 2394

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