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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 37 · 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. 1.167 × 5 =
  2. 2.804 × 4 =
  3. 3.224 × 8 =
  4. 4.634 × 9 =
  5. 5.133 × 5 =
  6. 6.897 × 5 =
  7. 7.484 × 9 =
  8. 8.241 × 3 =
  9. 9.341 × 4 =
  10. 10.952 × 8 =
  11. 11.589 × 6 =
  12. 12.641 × 4 =
  13. 13.305 × 6 =
  14. 14.707 × 9 =
  15. 15.428 × 6 =
  16. 16.399 × 8 =
  17. 17.829 × 5 =
  18. 18.163 × 3 =
  19. 19.739 × 7 =
  20. 20.951 × 4 =
  21. 21.175 × 8 =
  22. 22.421 × 9 =
  23. 23.813 × 7 =
  24. 24.273 × 6 =
  25. 25.243 × 8 =
  26. 26.949 × 5 =
  27. 27.398 × 6 =
  28. 28.287 × 5 =
  29. 29.695 × 9 =
  30. 30.874 × 3 =
  31. 31.348 × 4 =
  32. 32.531 × 3 =
  33. 33.374 × 6 =
  34. 34.161 × 3 =
  35. 35.285 × 9 =
  36. 36.846 × 4 =
  37. 37.806 × 4 =
  38. 38.461 × 7 =
  39. 39.857 × 3 =
  40. 40.392 × 7 =

Answer key

  1. 835
  2. 3216
  3. 1792
  4. 5706
  5. 665
  6. 4485
  7. 4356
  8. 723
  9. 1364
  10. 7616
  11. 3534
  12. 2564
  13. 1830
  14. 6363
  15. 2568
  16. 3192
  17. 4145
  18. 489
  19. 5173
  20. 3804
  21. 1400
  22. 3789
  23. 5691
  24. 1638
  25. 1944
  26. 4745
  27. 2388
  28. 1435
  29. 6255
  30. 2622
  31. 1392
  32. 1593
  33. 2244
  34. 483
  35. 2565
  36. 3384
  37. 3224
  38. 3227
  39. 2571
  40. 2744

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