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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 727 · 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. 1.845 × 9 =
  2. 2.645 × 5 =
  3. 3.853 × 3 =
  4. 4.175 × 7 =
  5. 5.663 × 7 =
  6. 6.976 × 9 =
  7. 7.192 × 8 =
  8. 8.538 × 5 =
  9. 9.791 × 7 =
  10. 10.463 × 8 =
  11. 11.423 × 9 =
  12. 12.138 × 6 =
  13. 13.561 × 3 =
  14. 14.127 × 6 =
  15. 15.351 × 6 =
  16. 16.468 × 3 =
  17. 17.519 × 3 =
  18. 18.414 × 6 =
  19. 19.961 × 6 =
  20. 20.617 × 6 =
  21. 21.309 × 3 =
  22. 22.611 × 6 =
  23. 23.161 × 4 =
  24. 24.877 × 7 =
  25. 25.151 × 3 =
  26. 26.797 × 9 =
  27. 27.607 × 6 =
  28. 28.133 × 8 =
  29. 29.741 × 8 =
  30. 30.354 × 5 =
  31. 31.531 × 9 =
  32. 32.435 × 4 =
  33. 33.265 × 7 =
  34. 34.342 × 8 =
  35. 35.429 × 4 =
  36. 36.581 × 5 =
  37. 37.415 × 9 =
  38. 38.561 × 5 =
  39. 39.962 × 3 =
  40. 40.148 × 5 =

Answer key

  1. 7605
  2. 3225
  3. 2559
  4. 1225
  5. 4641
  6. 8784
  7. 1536
  8. 2690
  9. 5537
  10. 3704
  11. 3807
  12. 828
  13. 1683
  14. 762
  15. 2106
  16. 1404
  17. 1557
  18. 2484
  19. 5766
  20. 3702
  21. 927
  22. 3666
  23. 644
  24. 6139
  25. 453
  26. 7173
  27. 3642
  28. 1064
  29. 5928
  30. 1770
  31. 4779
  32. 1740
  33. 1855
  34. 2736
  35. 1716
  36. 2905
  37. 3735
  38. 2805
  39. 2886
  40. 740

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