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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 778 · 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. 1.481 × 4 =
  2. 2.177 × 3 =
  3. 3.901 × 5 =
  4. 4.155 × 5 =
  5. 5.917 × 4 =
  6. 6.387 × 7 =
  7. 7.393 × 4 =
  8. 8.169 × 8 =
  9. 9.247 × 8 =
  10. 10.886 × 5 =
  11. 11.211 × 4 =
  12. 12.249 × 3 =
  13. 13.595 × 6 =
  14. 14.519 × 5 =
  15. 15.835 × 5 =
  16. 16.165 × 7 =
  17. 17.925 × 9 =
  18. 18.958 × 7 =
  19. 19.283 × 5 =
  20. 20.866 × 8 =
  21. 21.776 × 7 =
  22. 22.736 × 4 =
  23. 23.554 × 6 =
  24. 24.346 × 9 =
  25. 25.186 × 7 =
  26. 26.739 × 5 =
  27. 27.718 × 8 =
  28. 28.937 × 4 =
  29. 29.335 × 8 =
  30. 30.362 × 4 =
  31. 31.911 × 9 =
  32. 32.341 × 5 =
  33. 33.818 × 6 =
  34. 34.139 × 5 =
  35. 35.831 × 8 =
  36. 36.873 × 3 =
  37. 37.659 × 5 =
  38. 38.436 × 6 =
  39. 39.922 × 3 =
  40. 40.291 × 4 =

Answer key

  1. 1924
  2. 531
  3. 4505
  4. 775
  5. 3668
  6. 2709
  7. 1572
  8. 1352
  9. 1976
  10. 4430
  11. 844
  12. 747
  13. 3570
  14. 2595
  15. 4175
  16. 1155
  17. 8325
  18. 6706
  19. 1415
  20. 6928
  21. 5432
  22. 2944
  23. 3324
  24. 3114
  25. 1302
  26. 3695
  27. 5744
  28. 3748
  29. 2680
  30. 1448
  31. 8199
  32. 1705
  33. 4908
  34. 695
  35. 6648
  36. 2619
  37. 3295
  38. 2616
  39. 2766
  40. 1164

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