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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 221 · 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. 1.156 × 9 =
  2. 2.328 × 3 =
  3. 3.317 × 6 =
  4. 4.747 × 8 =
  5. 5.376 × 5 =
  6. 6.851 × 3 =
  7. 7.875 × 6 =
  8. 8.199 × 7 =
  9. 9.743 × 8 =
  10. 10.883 × 7 =
  11. 11.407 × 5 =
  12. 12.257 × 4 =
  13. 13.588 × 3 =
  14. 14.269 × 3 =
  15. 15.313 × 9 =
  16. 16.812 × 3 =
  17. 17.378 × 3 =
  18. 18.672 × 7 =
  19. 19.373 × 4 =
  20. 20.429 × 8 =
  21. 21.455 × 8 =
  22. 22.523 × 3 =
  23. 23.718 × 4 =
  24. 24.798 × 6 =
  25. 25.271 × 3 =
  26. 26.691 × 9 =
  27. 27.477 × 4 =
  28. 28.924 × 9 =
  29. 29.258 × 4 =
  30. 30.791 × 5 =
  31. 31.587 × 9 =
  32. 32.783 × 9 =
  33. 33.621 × 6 =
  34. 34.131 × 3 =
  35. 35.834 × 9 =
  36. 36.878 × 7 =
  37. 37.868 × 8 =
  38. 38.973 × 8 =
  39. 39.671 × 8 =
  40. 40.274 × 7 =

Answer key

  1. 1404
  2. 984
  3. 1902
  4. 5976
  5. 1880
  6. 2553
  7. 5250
  8. 1393
  9. 5944
  10. 6181
  11. 2035
  12. 1028
  13. 1764
  14. 807
  15. 2817
  16. 2436
  17. 1134
  18. 4704
  19. 1492
  20. 3432
  21. 3640
  22. 1569
  23. 2872
  24. 4788
  25. 813
  26. 6219
  27. 1908
  28. 8316
  29. 1032
  30. 3955
  31. 5283
  32. 7047
  33. 3726
  34. 393
  35. 7506
  36. 6146
  37. 6944
  38. 7784
  39. 5368
  40. 1918

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