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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 646 · 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. 1.289 × 9 =
  2. 2.339 × 6 =
  3. 3.717 × 7 =
  4. 4.229 × 7 =
  5. 5.119 × 5 =
  6. 6.941 × 4 =
  7. 7.372 × 3 =
  8. 8.961 × 8 =
  9. 9.492 × 7 =
  10. 10.526 × 3 =
  11. 11.251 × 9 =
  12. 12.646 × 6 =
  13. 13.659 × 9 =
  14. 14.891 × 3 =
  15. 15.354 × 5 =
  16. 16.402 × 5 =
  17. 17.549 × 6 =
  18. 18.666 × 8 =
  19. 19.545 × 9 =
  20. 20.948 × 6 =
  21. 21.465 × 7 =
  22. 22.283 × 3 =
  23. 23.113 × 4 =
  24. 24.861 × 3 =
  25. 25.783 × 3 =
  26. 26.581 × 8 =
  27. 27.382 × 6 =
  28. 28.656 × 7 =
  29. 29.517 × 4 =
  30. 30.257 × 8 =
  31. 31.206 × 4 =
  32. 32.906 × 8 =
  33. 33.406 × 7 =
  34. 34.219 × 4 =
  35. 35.485 × 9 =
  36. 36.759 × 9 =
  37. 37.494 × 4 =
  38. 38.231 × 7 =
  39. 39.733 × 8 =
  40. 40.559 × 3 =

Answer key

  1. 2601
  2. 2034
  3. 5019
  4. 1603
  5. 595
  6. 3764
  7. 1116
  8. 7688
  9. 3444
  10. 1578
  11. 2259
  12. 3876
  13. 5931
  14. 2673
  15. 1770
  16. 2010
  17. 3294
  18. 5328
  19. 4905
  20. 5688
  21. 3255
  22. 849
  23. 452
  24. 2583
  25. 2349
  26. 4648
  27. 2292
  28. 4592
  29. 2068
  30. 2056
  31. 824
  32. 7248
  33. 2842
  34. 876
  35. 4365
  36. 6831
  37. 1976
  38. 1617
  39. 5864
  40. 1677

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