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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 24 · 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. 1.371 × 5 =
  2. 2.979 × 5 =
  3. 3.656 × 3 =
  4. 4.661 × 4 =
  5. 5.746 × 5 =
  6. 6.303 × 6 =
  7. 7.867 × 3 =
  8. 8.161 × 9 =
  9. 9.789 × 5 =
  10. 10.133 × 3 =
  11. 11.336 × 3 =
  12. 12.474 × 7 =
  13. 13.303 × 4 =
  14. 14.811 × 3 =
  15. 15.656 × 4 =
  16. 16.227 × 7 =
  17. 17.944 × 8 =
  18. 18.895 × 5 =
  19. 19.252 × 5 =
  20. 20.928 × 7 =
  21. 21.586 × 8 =
  22. 22.703 × 9 =
  23. 23.757 × 6 =
  24. 24.136 × 3 =
  25. 25.861 × 6 =
  26. 26.611 × 8 =
  27. 27.521 × 3 =
  28. 28.224 × 5 =
  29. 29.861 × 8 =
  30. 30.978 × 7 =
  31. 31.339 × 9 =
  32. 32.143 × 5 =
  33. 33.805 × 3 =
  34. 34.157 × 7 =
  35. 35.742 × 6 =
  36. 36.278 × 5 =
  37. 37.726 × 9 =
  38. 38.614 × 9 =
  39. 39.976 × 4 =
  40. 40.374 × 3 =

Answer key

  1. 1855
  2. 4895
  3. 1968
  4. 2644
  5. 3730
  6. 1818
  7. 2601
  8. 1449
  9. 3945
  10. 399
  11. 1008
  12. 3318
  13. 1212
  14. 2433
  15. 2624
  16. 1589
  17. 7552
  18. 4475
  19. 1260
  20. 6496
  21. 4688
  22. 6327
  23. 4542
  24. 408
  25. 5166
  26. 4888
  27. 1563
  28. 1120
  29. 6888
  30. 6846
  31. 3051
  32. 715
  33. 2415
  34. 1099
  35. 4452
  36. 1390
  37. 6534
  38. 5526
  39. 3904
  40. 1122

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