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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 339 · 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. 1.344 × 4 =
  2. 2.365 × 5 =
  3. 3.454 × 4 =
  4. 4.142 × 7 =
  5. 5.218 × 3 =
  6. 6.243 × 6 =
  7. 7.546 × 7 =
  8. 8.285 × 6 =
  9. 9.545 × 3 =
  10. 10.164 × 3 =
  11. 11.237 × 6 =
  12. 12.722 × 8 =
  13. 13.931 × 7 =
  14. 14.169 × 9 =
  15. 15.295 × 3 =
  16. 16.748 × 4 =
  17. 17.282 × 7 =
  18. 18.133 × 8 =
  19. 19.489 × 6 =
  20. 20.881 × 9 =
  21. 21.873 × 6 =
  22. 22.627 × 8 =
  23. 23.313 × 4 =
  24. 24.921 × 4 =
  25. 25.506 × 4 =
  26. 26.298 × 7 =
  27. 27.363 × 4 =
  28. 28.318 × 3 =
  29. 29.172 × 7 =
  30. 30.831 × 9 =
  31. 31.215 × 5 =
  32. 32.921 × 9 =
  33. 33.242 × 3 =
  34. 34.251 × 3 =
  35. 35.877 × 8 =
  36. 36.645 × 6 =
  37. 37.462 × 8 =
  38. 38.831 × 5 =
  39. 39.388 × 9 =
  40. 40.262 × 6 =

Answer key

  1. 1376
  2. 1825
  3. 1816
  4. 994
  5. 654
  6. 1458
  7. 3822
  8. 1710
  9. 1635
  10. 492
  11. 1422
  12. 5776
  13. 6517
  14. 1521
  15. 885
  16. 2992
  17. 1974
  18. 1064
  19. 2934
  20. 7929
  21. 5238
  22. 5016
  23. 1252
  24. 3684
  25. 2024
  26. 2086
  27. 1452
  28. 954
  29. 1204
  30. 7479
  31. 1075
  32. 8289
  33. 726
  34. 753
  35. 7016
  36. 3870
  37. 3696
  38. 4155
  39. 3492
  40. 1572

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