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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 365 · 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. 1.163 × 9 =
  2. 2.243 × 3 =
  3. 3.494 × 5 =
  4. 4.739 × 8 =
  5. 5.237 × 8 =
  6. 6.531 × 8 =
  7. 7.209 × 4 =
  8. 8.211 × 4 =
  9. 9.696 × 8 =
  10. 10.289 × 3 =
  11. 11.686 × 6 =
  12. 12.326 × 3 =
  13. 13.138 × 3 =
  14. 14.612 × 7 =
  15. 15.873 × 9 =
  16. 16.719 × 8 =
  17. 17.468 × 8 =
  18. 18.871 × 4 =
  19. 19.211 × 9 =
  20. 20.659 × 6 =
  21. 21.913 × 4 =
  22. 22.621 × 7 =
  23. 23.545 × 4 =
  24. 24.189 × 8 =
  25. 25.636 × 5 =
  26. 26.173 × 8 =
  27. 27.508 × 3 =
  28. 28.118 × 6 =
  29. 29.664 × 3 =
  30. 30.285 × 5 =
  31. 31.316 × 8 =
  32. 32.314 × 9 =
  33. 33.282 × 9 =
  34. 34.706 × 9 =
  35. 35.893 × 5 =
  36. 36.308 × 3 =
  37. 37.372 × 3 =
  38. 38.742 × 6 =
  39. 39.839 × 7 =
  40. 40.605 × 4 =

Answer key

  1. 1467
  2. 729
  3. 2470
  4. 5912
  5. 1896
  6. 4248
  7. 836
  8. 844
  9. 5568
  10. 867
  11. 4116
  12. 978
  13. 414
  14. 4284
  15. 7857
  16. 5752
  17. 3744
  18. 3484
  19. 1899
  20. 3954
  21. 3652
  22. 4347
  23. 2180
  24. 1512
  25. 3180
  26. 1384
  27. 1524
  28. 708
  29. 1992
  30. 1425
  31. 2528
  32. 2826
  33. 2538
  34. 6354
  35. 4465
  36. 924
  37. 1116
  38. 4452
  39. 5873
  40. 2420

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