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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 623 · 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. 1.477 × 5 =
  2. 2.643 × 3 =
  3. 3.926 × 6 =
  4. 4.243 × 3 =
  5. 5.298 × 3 =
  6. 6.295 × 6 =
  7. 7.971 × 4 =
  8. 8.801 × 4 =
  9. 9.592 × 7 =
  10. 10.321 × 8 =
  11. 11.513 × 7 =
  12. 12.696 × 3 =
  13. 13.784 × 4 =
  14. 14.261 × 5 =
  15. 15.126 × 3 =
  16. 16.734 × 9 =
  17. 17.503 × 6 =
  18. 18.583 × 9 =
  19. 19.506 × 4 =
  20. 20.607 × 4 =
  21. 21.978 × 4 =
  22. 22.564 × 7 =
  23. 23.939 × 5 =
  24. 24.288 × 7 =
  25. 25.761 × 4 =
  26. 26.817 × 8 =
  27. 27.731 × 9 =
  28. 28.729 × 3 =
  29. 29.266 × 6 =
  30. 30.189 × 5 =
  31. 31.258 × 3 =
  32. 32.636 × 7 =
  33. 33.564 × 8 =
  34. 34.538 × 9 =
  35. 35.446 × 8 =
  36. 36.958 × 7 =
  37. 37.755 × 4 =
  38. 38.294 × 7 =
  39. 39.796 × 8 =
  40. 40.877 × 7 =

Answer key

  1. 2385
  2. 1929
  3. 5556
  4. 729
  5. 894
  6. 1770
  7. 3884
  8. 3204
  9. 4144
  10. 2568
  11. 3591
  12. 2088
  13. 3136
  14. 1305
  15. 378
  16. 6606
  17. 3018
  18. 5247
  19. 2024
  20. 2428
  21. 3912
  22. 3948
  23. 4695
  24. 2016
  25. 3044
  26. 6536
  27. 6579
  28. 2187
  29. 1596
  30. 945
  31. 774
  32. 4452
  33. 4512
  34. 4842
  35. 3568
  36. 6706
  37. 3020
  38. 2058
  39. 6368
  40. 6139

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