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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 110 · 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. 1.238 × 7 =
  2. 2.162 × 7 =
  3. 3.386 × 4 =
  4. 4.411 × 9 =
  5. 5.311 × 9 =
  6. 6.791 × 5 =
  7. 7.431 × 7 =
  8. 8.868 × 5 =
  9. 9.265 × 7 =
  10. 10.603 × 3 =
  11. 11.433 × 6 =
  12. 12.905 × 9 =
  13. 13.542 × 6 =
  14. 14.383 × 6 =
  15. 15.708 × 5 =
  16. 16.226 × 5 =
  17. 17.315 × 3 =
  18. 18.431 × 8 =
  19. 19.584 × 4 =
  20. 20.485 × 9 =
  21. 21.941 × 7 =
  22. 22.936 × 4 =
  23. 23.522 × 3 =
  24. 24.839 × 9 =
  25. 25.485 × 6 =
  26. 26.847 × 3 =
  27. 27.165 × 9 =
  28. 28.648 × 6 =
  29. 29.982 × 6 =
  30. 30.785 × 5 =
  31. 31.981 × 8 =
  32. 32.985 × 9 =
  33. 33.325 × 4 =
  34. 34.357 × 7 =
  35. 35.893 × 5 =
  36. 36.826 × 3 =
  37. 37.978 × 8 =
  38. 38.845 × 7 =
  39. 39.449 × 8 =
  40. 40.917 × 4 =

Answer key

  1. 1666
  2. 1134
  3. 1544
  4. 3699
  5. 2799
  6. 3955
  7. 3017
  8. 4340
  9. 1855
  10. 1809
  11. 2598
  12. 8145
  13. 3252
  14. 2298
  15. 3540
  16. 1130
  17. 945
  18. 3448
  19. 2336
  20. 4365
  21. 6587
  22. 3744
  23. 1566
  24. 7551
  25. 2910
  26. 2541
  27. 1485
  28. 3888
  29. 5892
  30. 3925
  31. 7848
  32. 8865
  33. 1300
  34. 2499
  35. 4465
  36. 2478
  37. 7824
  38. 5915
  39. 3592
  40. 3668

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