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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 324 · 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. 1.431 × 9 =
  2. 2.533 × 7 =
  3. 3.518 × 7 =
  4. 4.221 × 8 =
  5. 5.902 × 7 =
  6. 6.641 × 9 =
  7. 7.621 × 5 =
  8. 8.848 × 4 =
  9. 9.336 × 6 =
  10. 10.286 × 9 =
  11. 11.596 × 8 =
  12. 12.286 × 3 =
  13. 13.291 × 7 =
  14. 14.357 × 8 =
  15. 15.425 × 7 =
  16. 16.249 × 6 =
  17. 17.862 × 7 =
  18. 18.238 × 5 =
  19. 19.363 × 4 =
  20. 20.965 × 6 =
  21. 21.511 × 4 =
  22. 22.725 × 9 =
  23. 23.481 × 8 =
  24. 24.352 × 3 =
  25. 25.797 × 3 =
  26. 26.965 × 4 =
  27. 27.381 × 5 =
  28. 28.156 × 4 =
  29. 29.741 × 6 =
  30. 30.546 × 8 =
  31. 31.481 × 5 =
  32. 32.723 × 7 =
  33. 33.386 × 3 =
  34. 34.649 × 5 =
  35. 35.655 × 3 =
  36. 36.672 × 5 =
  37. 37.466 × 4 =
  38. 38.609 × 4 =
  39. 39.303 × 5 =
  40. 40.865 × 3 =

Answer key

  1. 3879
  2. 3731
  3. 3626
  4. 1768
  5. 6314
  6. 5769
  7. 3105
  8. 3392
  9. 2016
  10. 2574
  11. 4768
  12. 858
  13. 2037
  14. 2856
  15. 2975
  16. 1494
  17. 6034
  18. 1190
  19. 1452
  20. 5790
  21. 2044
  22. 6525
  23. 3848
  24. 1056
  25. 2391
  26. 3860
  27. 1905
  28. 624
  29. 4446
  30. 4368
  31. 2405
  32. 5061
  33. 1158
  34. 3245
  35. 1965
  36. 3360
  37. 1864
  38. 2436
  39. 1515
  40. 2595

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