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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 54 · 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. 1.191 × 4 =
  2. 2.868 × 3 =
  3. 3.606 × 4 =
  4. 4.328 × 4 =
  5. 5.248 × 4 =
  6. 6.596 × 3 =
  7. 7.777 × 8 =
  8. 8.381 × 3 =
  9. 9.907 × 3 =
  10. 10.375 × 4 =
  11. 11.569 × 9 =
  12. 12.536 × 4 =
  13. 13.656 × 8 =
  14. 14.794 × 5 =
  15. 15.332 × 4 =
  16. 16.851 × 5 =
  17. 17.884 × 4 =
  18. 18.477 × 4 =
  19. 19.513 × 8 =
  20. 20.431 × 3 =
  21. 21.743 × 3 =
  22. 22.631 × 9 =
  23. 23.915 × 7 =
  24. 24.815 × 9 =
  25. 25.642 × 3 =
  26. 26.396 × 8 =
  27. 27.307 × 6 =
  28. 28.167 × 3 =
  29. 29.622 × 9 =
  30. 30.751 × 6 =
  31. 31.232 × 9 =
  32. 32.924 × 5 =
  33. 33.425 × 9 =
  34. 34.217 × 5 =
  35. 35.896 × 3 =
  36. 36.659 × 5 =
  37. 37.639 × 5 =
  38. 38.573 × 6 =
  39. 39.339 × 5 =
  40. 40.624 × 6 =

Answer key

  1. 764
  2. 2604
  3. 2424
  4. 1312
  5. 992
  6. 1788
  7. 6216
  8. 1143
  9. 2721
  10. 1500
  11. 5121
  12. 2144
  13. 5248
  14. 3970
  15. 1328
  16. 4255
  17. 3536
  18. 1908
  19. 4104
  20. 1293
  21. 2229
  22. 5679
  23. 6405
  24. 7335
  25. 1926
  26. 3168
  27. 1842
  28. 501
  29. 5598
  30. 4506
  31. 2088
  32. 4620
  33. 3825
  34. 1085
  35. 2688
  36. 3295
  37. 3195
  38. 3438
  39. 1695
  40. 3744

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