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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 332 · 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. 1.216 × 8 =
  2. 2.415 × 8 =
  3. 3.171 × 3 =
  4. 4.234 × 4 =
  5. 5.481 × 3 =
  6. 6.927 × 7 =
  7. 7.821 × 5 =
  8. 8.707 × 4 =
  9. 9.401 × 9 =
  10. 10.931 × 6 =
  11. 11.836 × 3 =
  12. 12.396 × 7 =
  13. 13.402 × 7 =
  14. 14.687 × 6 =
  15. 15.276 × 3 =
  16. 16.451 × 3 =
  17. 17.204 × 7 =
  18. 18.297 × 5 =
  19. 19.937 × 4 =
  20. 20.527 × 3 =
  21. 21.503 × 3 =
  22. 22.612 × 3 =
  23. 23.661 × 6 =
  24. 24.293 × 8 =
  25. 25.753 × 9 =
  26. 26.435 × 4 =
  27. 27.148 × 3 =
  28. 28.988 × 7 =
  29. 29.931 × 5 =
  30. 30.919 × 4 =
  31. 31.214 × 3 =
  32. 32.757 × 5 =
  33. 33.911 × 5 =
  34. 34.441 × 9 =
  35. 35.582 × 5 =
  36. 36.261 × 9 =
  37. 37.549 × 7 =
  38. 38.593 × 4 =
  39. 39.731 × 7 =
  40. 40.377 × 6 =

Answer key

  1. 1728
  2. 3320
  3. 513
  4. 936
  5. 1443
  6. 6489
  7. 4105
  8. 2828
  9. 3609
  10. 5586
  11. 2508
  12. 2772
  13. 2814
  14. 4122
  15. 828
  16. 1353
  17. 1428
  18. 1485
  19. 3748
  20. 1581
  21. 1509
  22. 1836
  23. 3966
  24. 2344
  25. 6777
  26. 1740
  27. 444
  28. 6916
  29. 4655
  30. 3676
  31. 642
  32. 3785
  33. 4555
  34. 3969
  35. 2910
  36. 2349
  37. 3843
  38. 2372
  39. 5117
  40. 2262

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