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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 674 · 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. 1.137 × 8 =
  2. 2.957 × 3 =
  3. 3.346 × 3 =
  4. 4.736 × 4 =
  5. 5.466 × 3 =
  6. 6.616 × 9 =
  7. 7.173 × 9 =
  8. 8.139 × 3 =
  9. 9.344 × 8 =
  10. 10.423 × 4 =
  11. 11.324 × 3 =
  12. 12.356 × 7 =
  13. 13.738 × 4 =
  14. 14.702 × 8 =
  15. 15.489 × 8 =
  16. 16.204 × 7 =
  17. 17.374 × 5 =
  18. 18.131 × 4 =
  19. 19.881 × 7 =
  20. 20.926 × 6 =
  21. 21.281 × 6 =
  22. 22.617 × 3 =
  23. 23.677 × 3 =
  24. 24.294 × 6 =
  25. 25.125 × 8 =
  26. 26.142 × 7 =
  27. 27.686 × 6 =
  28. 28.195 × 8 =
  29. 29.852 × 9 =
  30. 30.207 × 5 =
  31. 31.511 × 5 =
  32. 32.186 × 9 =
  33. 33.596 × 3 =
  34. 34.271 × 8 =
  35. 35.672 × 3 =
  36. 36.833 × 8 =
  37. 37.332 × 9 =
  38. 38.864 × 9 =
  39. 39.391 × 6 =
  40. 40.141 × 3 =

Answer key

  1. 1096
  2. 2871
  3. 1038
  4. 2944
  5. 1398
  6. 5544
  7. 1557
  8. 417
  9. 2752
  10. 1692
  11. 972
  12. 2492
  13. 2952
  14. 5616
  15. 3912
  16. 1428
  17. 1870
  18. 524
  19. 6167
  20. 5556
  21. 1686
  22. 1851
  23. 2031
  24. 1764
  25. 1000
  26. 994
  27. 4116
  28. 1560
  29. 7668
  30. 1035
  31. 2555
  32. 1674
  33. 1788
  34. 2168
  35. 2016
  36. 6664
  37. 2988
  38. 7776
  39. 2346
  40. 423

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