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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 134 · 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. 1.471 × 3 =
  2. 2.272 × 8 =
  3. 3.133 × 3 =
  4. 4.265 × 5 =
  5. 5.596 × 5 =
  6. 6.171 × 4 =
  7. 7.311 × 6 =
  8. 8.528 × 7 =
  9. 9.649 × 3 =
  10. 10.723 × 4 =
  11. 11.898 × 5 =
  12. 12.303 × 4 =
  13. 13.699 × 9 =
  14. 14.239 × 8 =
  15. 15.382 × 5 =
  16. 16.411 × 8 =
  17. 17.284 × 6 =
  18. 18.821 × 5 =
  19. 19.898 × 4 =
  20. 20.833 × 3 =
  21. 21.185 × 9 =
  22. 22.981 × 9 =
  23. 23.903 × 7 =
  24. 24.602 × 7 =
  25. 25.418 × 3 =
  26. 26.649 × 6 =
  27. 27.823 × 8 =
  28. 28.691 × 4 =
  29. 29.403 × 5 =
  30. 30.586 × 3 =
  31. 31.334 × 9 =
  32. 32.281 × 9 =
  33. 33.732 × 5 =
  34. 34.218 × 3 =
  35. 35.568 × 5 =
  36. 36.126 × 3 =
  37. 37.451 × 6 =
  38. 38.304 × 7 =
  39. 39.406 × 7 =
  40. 40.838 × 5 =

Answer key

  1. 1413
  2. 2176
  3. 399
  4. 1325
  5. 2980
  6. 684
  7. 1866
  8. 3696
  9. 1947
  10. 2892
  11. 4490
  12. 1212
  13. 6291
  14. 1912
  15. 1910
  16. 3288
  17. 1704
  18. 4105
  19. 3592
  20. 2499
  21. 1665
  22. 8829
  23. 6321
  24. 4214
  25. 1254
  26. 3894
  27. 6584
  28. 2764
  29. 2015
  30. 1758
  31. 3006
  32. 2529
  33. 3660
  34. 654
  35. 2840
  36. 378
  37. 2706
  38. 2128
  39. 2842
  40. 4190

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