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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 603 · 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. 1.556 × 4 =
  2. 2.496 × 4 =
  3. 3.207 × 9 =
  4. 4.409 × 9 =
  5. 5.834 × 5 =
  6. 6.491 × 4 =
  7. 7.829 × 6 =
  8. 8.968 × 6 =
  9. 9.801 × 6 =
  10. 10.113 × 6 =
  11. 11.405 × 3 =
  12. 12.161 × 4 =
  13. 13.856 × 3 =
  14. 14.988 × 7 =
  15. 15.571 × 5 =
  16. 16.568 × 3 =
  17. 17.665 × 4 =
  18. 18.399 × 5 =
  19. 19.366 × 7 =
  20. 20.567 × 8 =
  21. 21.806 × 4 =
  22. 22.885 × 9 =
  23. 23.865 × 9 =
  24. 24.125 × 8 =
  25. 25.131 × 8 =
  26. 26.959 × 7 =
  27. 27.221 × 9 =
  28. 28.696 × 9 =
  29. 29.427 × 7 =
  30. 30.487 × 9 =
  31. 31.889 × 7 =
  32. 32.512 × 9 =
  33. 33.305 × 3 =
  34. 34.614 × 9 =
  35. 35.534 × 9 =
  36. 36.801 × 5 =
  37. 37.783 × 6 =
  38. 38.194 × 4 =
  39. 39.683 × 3 =
  40. 40.687 × 6 =

Answer key

  1. 2224
  2. 1984
  3. 1863
  4. 3681
  5. 4170
  6. 1964
  7. 4974
  8. 5808
  9. 4806
  10. 678
  11. 1215
  12. 644
  13. 2568
  14. 6916
  15. 2855
  16. 1704
  17. 2660
  18. 1995
  19. 2562
  20. 4536
  21. 3224
  22. 7965
  23. 7785
  24. 1000
  25. 1048
  26. 6713
  27. 1989
  28. 6264
  29. 2989
  30. 4383
  31. 6223
  32. 4608
  33. 915
  34. 5526
  35. 4806
  36. 4005
  37. 4698
  38. 776
  39. 2049
  40. 4122

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