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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 708 · 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. 1.365 × 9 =
  2. 2.898 × 6 =
  3. 3.415 × 8 =
  4. 4.196 × 4 =
  5. 5.612 × 9 =
  6. 6.873 × 9 =
  7. 7.353 × 7 =
  8. 8.925 × 3 =
  9. 9.885 × 7 =
  10. 10.804 × 4 =
  11. 11.497 × 7 =
  12. 12.368 × 6 =
  13. 13.749 × 6 =
  14. 14.873 × 6 =
  15. 15.238 × 9 =
  16. 16.182 × 9 =
  17. 17.331 × 7 =
  18. 18.812 × 5 =
  19. 19.666 × 6 =
  20. 20.868 × 9 =
  21. 21.476 × 6 =
  22. 22.336 × 3 =
  23. 23.841 × 8 =
  24. 24.539 × 4 =
  25. 25.186 × 6 =
  26. 26.833 × 4 =
  27. 27.908 × 7 =
  28. 28.171 × 4 =
  29. 29.154 × 4 =
  30. 30.486 × 6 =
  31. 31.947 × 7 =
  32. 32.321 × 3 =
  33. 33.291 × 4 =
  34. 34.684 × 8 =
  35. 35.121 × 3 =
  36. 36.363 × 5 =
  37. 37.371 × 8 =
  38. 38.251 × 9 =
  39. 39.201 × 8 =
  40. 40.559 × 6 =

Answer key

  1. 3285
  2. 5388
  3. 3320
  4. 784
  5. 5508
  6. 7857
  7. 2471
  8. 2775
  9. 6195
  10. 3216
  11. 3479
  12. 2208
  13. 4494
  14. 5238
  15. 2142
  16. 1638
  17. 2317
  18. 4060
  19. 3996
  20. 7812
  21. 2856
  22. 1008
  23. 6728
  24. 2156
  25. 1116
  26. 3332
  27. 6356
  28. 684
  29. 616
  30. 2916
  31. 6629
  32. 963
  33. 1164
  34. 5472
  35. 363
  36. 1815
  37. 2968
  38. 2259
  39. 1608
  40. 3354

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