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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 143 · 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. 1.583 × 3 =
  2. 2.313 × 6 =
  3. 3.166 × 3 =
  4. 4.675 × 5 =
  5. 5.801 × 9 =
  6. 6.718 × 5 =
  7. 7.981 × 4 =
  8. 8.366 × 4 =
  9. 9.344 × 8 =
  10. 10.266 × 8 =
  11. 11.215 × 3 =
  12. 12.561 × 8 =
  13. 13.625 × 5 =
  14. 14.133 × 3 =
  15. 15.214 × 4 =
  16. 16.281 × 9 =
  17. 17.839 × 5 =
  18. 18.858 × 5 =
  19. 19.261 × 4 =
  20. 20.413 × 5 =
  21. 21.872 × 9 =
  22. 22.255 × 8 =
  23. 23.271 × 3 =
  24. 24.725 × 5 =
  25. 25.141 × 4 =
  26. 26.337 × 3 =
  27. 27.796 × 3 =
  28. 28.291 × 4 =
  29. 29.894 × 3 =
  30. 30.959 × 9 =
  31. 31.907 × 9 =
  32. 32.971 × 4 =
  33. 33.891 × 8 =
  34. 34.861 × 7 =
  35. 35.591 × 3 =
  36. 36.949 × 5 =
  37. 37.926 × 7 =
  38. 38.479 × 5 =
  39. 39.852 × 9 =
  40. 40.921 × 7 =

Answer key

  1. 1749
  2. 1878
  3. 498
  4. 3375
  5. 7209
  6. 3590
  7. 3924
  8. 1464
  9. 2752
  10. 2128
  11. 645
  12. 4488
  13. 3125
  14. 399
  15. 856
  16. 2529
  17. 4195
  18. 4290
  19. 1044
  20. 2065
  21. 7848
  22. 2040
  23. 813
  24. 3625
  25. 564
  26. 1011
  27. 2388
  28. 1164
  29. 2682
  30. 8631
  31. 8163
  32. 3884
  33. 7128
  34. 6027
  35. 1773
  36. 4745
  37. 6482
  38. 2395
  39. 7668
  40. 6447

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