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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 642 · 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. 1.649 × 8 =
  2. 2.376 × 8 =
  3. 3.367 × 6 =
  4. 4.708 × 4 =
  5. 5.826 × 7 =
  6. 6.704 × 6 =
  7. 7.142 × 3 =
  8. 8.464 × 5 =
  9. 9.379 × 3 =
  10. 10.811 × 7 =
  11. 11.752 × 3 =
  12. 12.652 × 9 =
  13. 13.203 × 3 =
  14. 14.541 × 4 =
  15. 15.976 × 9 =
  16. 16.739 × 9 =
  17. 17.444 × 3 =
  18. 18.272 × 6 =
  19. 19.621 × 7 =
  20. 20.185 × 7 =
  21. 21.891 × 3 =
  22. 22.701 × 7 =
  23. 23.334 × 6 =
  24. 24.455 × 6 =
  25. 25.916 × 4 =
  26. 26.376 × 4 =
  27. 27.382 × 6 =
  28. 28.219 × 3 =
  29. 29.134 × 4 =
  30. 30.861 × 5 =
  31. 31.419 × 8 =
  32. 32.328 × 6 =
  33. 33.753 × 8 =
  34. 34.335 × 3 =
  35. 35.206 × 5 =
  36. 36.244 × 8 =
  37. 37.847 × 8 =
  38. 38.429 × 4 =
  39. 39.762 × 7 =
  40. 40.726 × 3 =

Answer key

  1. 5192
  2. 3008
  3. 2202
  4. 2832
  5. 5782
  6. 4224
  7. 426
  8. 2320
  9. 1137
  10. 5677
  11. 2256
  12. 5868
  13. 609
  14. 2164
  15. 8784
  16. 6651
  17. 1332
  18. 1632
  19. 4347
  20. 1295
  21. 2673
  22. 4907
  23. 2004
  24. 2730
  25. 3664
  26. 1504
  27. 2292
  28. 657
  29. 536
  30. 4305
  31. 3352
  32. 1968
  33. 6024
  34. 1005
  35. 1030
  36. 1952
  37. 6776
  38. 1716
  39. 5334
  40. 2178

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