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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 157 · 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. 1.308 × 9 =
  2. 2.391 × 8 =
  3. 3.424 × 9 =
  4. 4.954 × 4 =
  5. 5.132 × 7 =
  6. 6.307 × 3 =
  7. 7.362 × 5 =
  8. 8.829 × 7 =
  9. 9.598 × 5 =
  10. 10.818 × 8 =
  11. 11.291 × 3 =
  12. 12.481 × 4 =
  13. 13.319 × 5 =
  14. 14.474 × 9 =
  15. 15.554 × 8 =
  16. 16.351 × 3 =
  17. 17.593 × 4 =
  18. 18.751 × 5 =
  19. 19.942 × 6 =
  20. 20.128 × 8 =
  21. 21.831 × 8 =
  22. 22.819 × 6 =
  23. 23.718 × 9 =
  24. 24.175 × 6 =
  25. 25.504 × 6 =
  26. 26.229 × 6 =
  27. 27.756 × 4 =
  28. 28.494 × 7 =
  29. 29.211 × 3 =
  30. 30.141 × 3 =
  31. 31.311 × 6 =
  32. 32.419 × 4 =
  33. 33.836 × 7 =
  34. 34.762 × 3 =
  35. 35.857 × 4 =
  36. 36.723 × 5 =
  37. 37.491 × 8 =
  38. 38.479 × 3 =
  39. 39.879 × 4 =
  40. 40.981 × 8 =

Answer key

  1. 2772
  2. 3128
  3. 3816
  4. 3816
  5. 924
  6. 921
  7. 1810
  8. 5803
  9. 2990
  10. 6544
  11. 873
  12. 1924
  13. 1595
  14. 4266
  15. 4432
  16. 1053
  17. 2372
  18. 3755
  19. 5652
  20. 1024
  21. 6648
  22. 4914
  23. 6462
  24. 1050
  25. 3024
  26. 1374
  27. 3024
  28. 3458
  29. 633
  30. 423
  31. 1866
  32. 1676
  33. 5852
  34. 2286
  35. 3428
  36. 3615
  37. 3928
  38. 1437
  39. 3516
  40. 7848

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