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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 235 · 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. 1.294 × 4 =
  2. 2.119 × 8 =
  3. 3.288 × 6 =
  4. 4.477 × 8 =
  5. 5.918 × 8 =
  6. 6.446 × 8 =
  7. 7.454 × 5 =
  8. 8.916 × 9 =
  9. 9.739 × 9 =
  10. 10.343 × 4 =
  11. 11.791 × 6 =
  12. 12.639 × 3 =
  13. 13.751 × 6 =
  14. 14.409 × 3 =
  15. 15.663 × 4 =
  16. 16.165 × 3 =
  17. 17.821 × 6 =
  18. 18.978 × 9 =
  19. 19.122 × 6 =
  20. 20.526 × 9 =
  21. 21.969 × 9 =
  22. 22.385 × 3 =
  23. 23.351 × 8 =
  24. 24.788 × 7 =
  25. 25.833 × 7 =
  26. 26.125 × 8 =
  27. 27.374 × 4 =
  28. 28.327 × 5 =
  29. 29.209 × 4 =
  30. 30.276 × 6 =
  31. 31.795 × 6 =
  32. 32.526 × 5 =
  33. 33.216 × 4 =
  34. 34.316 × 5 =
  35. 35.283 × 3 =
  36. 36.551 × 4 =
  37. 37.464 × 6 =
  38. 38.933 × 8 =
  39. 39.485 × 7 =
  40. 40.218 × 5 =

Answer key

  1. 1176
  2. 952
  3. 1728
  4. 3816
  5. 7344
  6. 3568
  7. 2270
  8. 8244
  9. 6651
  10. 1372
  11. 4746
  12. 1917
  13. 4506
  14. 1227
  15. 2652
  16. 495
  17. 4926
  18. 8802
  19. 732
  20. 4734
  21. 8721
  22. 1155
  23. 2808
  24. 5516
  25. 5831
  26. 1000
  27. 1496
  28. 1635
  29. 836
  30. 1656
  31. 4770
  32. 2630
  33. 864
  34. 1580
  35. 849
  36. 2204
  37. 2784
  38. 7464
  39. 3395
  40. 1090

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