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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 107 · 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. 1.651 × 4 =
  2. 2.911 × 3 =
  3. 3.463 × 8 =
  4. 4.253 × 9 =
  5. 5.198 × 7 =
  6. 6.432 × 4 =
  7. 7.539 × 7 =
  8. 8.462 × 3 =
  9. 9.185 × 6 =
  10. 10.739 × 9 =
  11. 11.981 × 7 =
  12. 12.879 × 8 =
  13. 13.346 × 4 =
  14. 14.205 × 6 =
  15. 15.732 × 3 =
  16. 16.544 × 8 =
  17. 17.271 × 9 =
  18. 18.504 × 8 =
  19. 19.882 × 5 =
  20. 20.281 × 7 =
  21. 21.211 × 8 =
  22. 22.315 × 4 =
  23. 23.543 × 9 =
  24. 24.759 × 7 =
  25. 25.332 × 6 =
  26. 26.656 × 6 =
  27. 27.869 × 5 =
  28. 28.156 × 3 =
  29. 29.956 × 8 =
  30. 30.941 × 9 =
  31. 31.601 × 3 =
  32. 32.947 × 5 =
  33. 33.306 × 3 =
  34. 34.397 × 4 =
  35. 35.531 × 8 =
  36. 36.272 × 7 =
  37. 37.715 × 3 =
  38. 38.168 × 7 =
  39. 39.823 × 7 =
  40. 40.846 × 7 =

Answer key

  1. 2604
  2. 2733
  3. 3704
  4. 2277
  5. 1386
  6. 1728
  7. 3773
  8. 1386
  9. 1110
  10. 6651
  11. 6867
  12. 7032
  13. 1384
  14. 1230
  15. 2196
  16. 4352
  17. 2439
  18. 4032
  19. 4410
  20. 1967
  21. 1688
  22. 1260
  23. 4887
  24. 5313
  25. 1992
  26. 3936
  27. 4345
  28. 468
  29. 7648
  30. 8469
  31. 1803
  32. 4735
  33. 918
  34. 1588
  35. 4248
  36. 1904
  37. 2145
  38. 1176
  39. 5761
  40. 5922

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