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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 153 · 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. 1.623 × 3 =
  2. 2.926 × 6 =
  3. 3.972 × 7 =
  4. 4.802 × 7 =
  5. 5.242 × 8 =
  6. 6.221 × 4 =
  7. 7.668 × 7 =
  8. 8.799 × 3 =
  9. 9.345 × 9 =
  10. 10.685 × 5 =
  11. 11.161 × 5 =
  12. 12.328 × 3 =
  13. 13.605 × 3 =
  14. 14.697 × 9 =
  15. 15.155 × 6 =
  16. 16.557 × 8 =
  17. 17.695 × 3 =
  18. 18.371 × 9 =
  19. 19.146 × 6 =
  20. 20.716 × 9 =
  21. 21.861 × 5 =
  22. 22.117 × 5 =
  23. 23.341 × 5 =
  24. 24.309 × 5 =
  25. 25.211 × 3 =
  26. 26.194 × 5 =
  27. 27.443 × 6 =
  28. 28.136 × 6 =
  29. 29.238 × 9 =
  30. 30.732 × 3 =
  31. 31.639 × 9 =
  32. 32.895 × 4 =
  33. 33.795 × 7 =
  34. 34.845 × 7 =
  35. 35.527 × 4 =
  36. 36.712 × 5 =
  37. 37.336 × 5 =
  38. 38.532 × 9 =
  39. 39.741 × 5 =
  40. 40.761 × 7 =

Answer key

  1. 1869
  2. 5556
  3. 6804
  4. 5614
  5. 1936
  6. 884
  7. 4676
  8. 2397
  9. 3105
  10. 3425
  11. 805
  12. 984
  13. 1815
  14. 6273
  15. 930
  16. 4456
  17. 2085
  18. 3339
  19. 876
  20. 6444
  21. 4305
  22. 585
  23. 1705
  24. 1545
  25. 633
  26. 970
  27. 2658
  28. 816
  29. 2142
  30. 2196
  31. 5751
  32. 3580
  33. 5565
  34. 5915
  35. 2108
  36. 3560
  37. 1680
  38. 4788
  39. 3705
  40. 5327

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