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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 194 · 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. 1.841 × 5 =
  2. 2.964 × 4 =
  3. 3.856 × 7 =
  4. 4.951 × 7 =
  5. 5.595 × 9 =
  6. 6.596 × 5 =
  7. 7.675 × 6 =
  8. 8.411 × 6 =
  9. 9.413 × 5 =
  10. 10.517 × 4 =
  11. 11.344 × 3 =
  12. 12.672 × 3 =
  13. 13.241 × 9 =
  14. 14.767 × 5 =
  15. 15.842 × 4 =
  16. 16.216 × 3 =
  17. 17.521 × 3 =
  18. 18.805 × 7 =
  19. 19.879 × 5 =
  20. 20.592 × 8 =
  21. 21.647 × 9 =
  22. 22.693 × 9 =
  23. 23.971 × 9 =
  24. 24.119 × 6 =
  25. 25.322 × 5 =
  26. 26.381 × 5 =
  27. 27.825 × 4 =
  28. 28.402 × 4 =
  29. 29.219 × 4 =
  30. 30.431 × 6 =
  31. 31.861 × 3 =
  32. 32.459 × 9 =
  33. 33.669 × 3 =
  34. 34.305 × 6 =
  35. 35.985 × 3 =
  36. 36.315 × 6 =
  37. 37.544 × 4 =
  38. 38.151 × 6 =
  39. 39.411 × 7 =
  40. 40.547 × 5 =

Answer key

  1. 4205
  2. 3856
  3. 5992
  4. 6657
  5. 5355
  6. 2980
  7. 4050
  8. 2466
  9. 2065
  10. 2068
  11. 1032
  12. 2016
  13. 2169
  14. 3835
  15. 3368
  16. 648
  17. 1563
  18. 5635
  19. 4395
  20. 4736
  21. 5823
  22. 6237
  23. 8739
  24. 714
  25. 1610
  26. 1905
  27. 3300
  28. 1608
  29. 876
  30. 2586
  31. 2583
  32. 4131
  33. 2007
  34. 1830
  35. 2955
  36. 1890
  37. 2176
  38. 906
  39. 2877
  40. 2735

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