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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 26 · 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. 2.941 × 9 =
  3. 3.321 × 4 =
  4. 4.176 × 4 =
  5. 5.912 × 8 =
  6. 6.171 × 7 =
  7. 7.422 × 6 =
  8. 8.288 × 6 =
  9. 9.531 × 7 =
  10. 10.361 × 9 =
  11. 11.918 × 9 =
  12. 12.869 × 7 =
  13. 13.911 × 3 =
  14. 14.221 × 4 =
  15. 15.552 × 4 =
  16. 16.788 × 6 =
  17. 17.471 × 3 =
  18. 18.309 × 9 =
  19. 19.345 × 7 =
  20. 20.606 × 7 =
  21. 21.694 × 9 =
  22. 22.722 × 9 =
  23. 23.456 × 7 =
  24. 24.269 × 6 =
  25. 25.742 × 9 =
  26. 26.971 × 4 =
  27. 27.146 × 7 =
  28. 28.327 × 6 =
  29. 29.523 × 3 =
  30. 30.368 × 8 =
  31. 31.581 × 3 =
  32. 32.225 × 8 =
  33. 33.401 × 8 =
  34. 34.575 × 7 =
  35. 35.724 × 3 =
  36. 36.587 × 4 =
  37. 37.964 × 8 =
  38. 38.178 × 3 =
  39. 39.574 × 9 =
  40. 40.875 × 6 =

Answer key

  1. 1096
  2. 8469
  3. 1284
  4. 704
  5. 7296
  6. 1197
  7. 2532
  8. 1728
  9. 3717
  10. 3249
  11. 8262
  12. 6083
  13. 2733
  14. 884
  15. 2208
  16. 4728
  17. 1413
  18. 2781
  19. 2415
  20. 4242
  21. 6246
  22. 6498
  23. 3192
  24. 1614
  25. 6678
  26. 3884
  27. 1022
  28. 1962
  29. 1569
  30. 2944
  31. 1743
  32. 1800
  33. 3208
  34. 4025
  35. 2172
  36. 2348
  37. 7712
  38. 534
  39. 5166
  40. 5250

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