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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 271 · 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. 1.668 × 3 =
  2. 2.226 × 9 =
  3. 3.594 × 3 =
  4. 4.696 × 4 =
  5. 5.165 × 5 =
  6. 6.407 × 9 =
  7. 7.691 × 8 =
  8. 8.388 × 9 =
  9. 9.464 × 9 =
  10. 10.521 × 6 =
  11. 11.349 × 6 =
  12. 12.857 × 5 =
  13. 13.553 × 6 =
  14. 14.681 × 6 =
  15. 15.202 × 3 =
  16. 16.502 × 3 =
  17. 17.544 × 3 =
  18. 18.121 × 7 =
  19. 19.871 × 4 =
  20. 20.116 × 9 =
  21. 21.832 × 7 =
  22. 22.619 × 4 =
  23. 23.846 × 9 =
  24. 24.451 × 3 =
  25. 25.186 × 8 =
  26. 26.843 × 6 =
  27. 27.861 × 3 =
  28. 28.216 × 7 =
  29. 29.646 × 9 =
  30. 30.199 × 8 =
  31. 31.814 × 3 =
  32. 32.388 × 4 =
  33. 33.785 × 6 =
  34. 34.759 × 9 =
  35. 35.391 × 4 =
  36. 36.481 × 9 =
  37. 37.509 × 9 =
  38. 38.405 × 5 =
  39. 39.198 × 9 =
  40. 40.938 × 6 =

Answer key

  1. 2004
  2. 2034
  3. 1782
  4. 2784
  5. 825
  6. 3663
  7. 5528
  8. 3492
  9. 4176
  10. 3126
  11. 2094
  12. 4285
  13. 3318
  14. 4086
  15. 606
  16. 1506
  17. 1632
  18. 847
  19. 3484
  20. 1044
  21. 5824
  22. 2476
  23. 7614
  24. 1353
  25. 1488
  26. 5058
  27. 2583
  28. 1512
  29. 5814
  30. 1592
  31. 2442
  32. 1552
  33. 4710
  34. 6831
  35. 1564
  36. 4329
  37. 4581
  38. 2025
  39. 1782
  40. 5628

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