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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 317 · 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. 1.859 × 7 =
  2. 2.741 × 9 =
  3. 3.872 × 4 =
  4. 4.222 × 3 =
  5. 5.161 × 4 =
  6. 6.783 × 6 =
  7. 7.261 × 4 =
  8. 8.115 × 6 =
  9. 9.232 × 7 =
  10. 10.681 × 8 =
  11. 11.718 × 5 =
  12. 12.384 × 9 =
  13. 13.367 × 9 =
  14. 14.788 × 9 =
  15. 15.531 × 7 =
  16. 16.418 × 6 =
  17. 17.417 × 7 =
  18. 18.804 × 8 =
  19. 19.181 × 8 =
  20. 20.341 × 3 =
  21. 21.439 × 5 =
  22. 22.933 × 6 =
  23. 23.719 × 6 =
  24. 24.383 × 9 =
  25. 25.428 × 4 =
  26. 26.308 × 3 =
  27. 27.783 × 8 =
  28. 28.434 × 5 =
  29. 29.631 × 9 =
  30. 30.464 × 8 =
  31. 31.455 × 8 =
  32. 32.364 × 4 =
  33. 33.229 × 9 =
  34. 34.899 × 7 =
  35. 35.881 × 6 =
  36. 36.144 × 9 =
  37. 37.851 × 5 =
  38. 38.348 × 4 =
  39. 39.131 × 6 =
  40. 40.501 × 9 =

Answer key

  1. 6013
  2. 6669
  3. 3488
  4. 666
  5. 644
  6. 4698
  7. 1044
  8. 690
  9. 1624
  10. 5448
  11. 3590
  12. 3456
  13. 3303
  14. 7092
  15. 3717
  16. 2508
  17. 2919
  18. 6432
  19. 1448
  20. 1023
  21. 2195
  22. 5598
  23. 4314
  24. 3447
  25. 1712
  26. 924
  27. 6264
  28. 2170
  29. 5679
  30. 3712
  31. 3640
  32. 1456
  33. 2061
  34. 6293
  35. 5286
  36. 1296
  37. 4255
  38. 1392
  39. 786
  40. 4509

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