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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 760 · 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. 1.389 × 8 =
  2. 2.229 × 5 =
  3. 3.986 × 9 =
  4. 4.826 × 6 =
  5. 5.845 × 9 =
  6. 6.151 × 6 =
  7. 7.558 × 3 =
  8. 8.507 × 6 =
  9. 9.285 × 3 =
  10. 10.332 × 9 =
  11. 11.894 × 4 =
  12. 12.542 × 9 =
  13. 13.354 × 7 =
  14. 14.378 × 6 =
  15. 15.737 × 3 =
  16. 16.379 × 6 =
  17. 17.954 × 6 =
  18. 18.751 × 7 =
  19. 19.622 × 6 =
  20. 20.881 × 5 =
  21. 21.325 × 4 =
  22. 22.874 × 9 =
  23. 23.513 × 5 =
  24. 24.573 × 3 =
  25. 25.533 × 7 =
  26. 26.312 × 3 =
  27. 27.951 × 4 =
  28. 28.319 × 9 =
  29. 29.841 × 6 =
  30. 30.258 × 5 =
  31. 31.477 × 8 =
  32. 32.157 × 3 =
  33. 33.181 × 3 =
  34. 34.139 × 7 =
  35. 35.488 × 7 =
  36. 36.487 × 9 =
  37. 37.768 × 6 =
  38. 38.964 × 7 =
  39. 39.507 × 9 =
  40. 40.974 × 7 =

Answer key

  1. 3112
  2. 1145
  3. 8874
  4. 4956
  5. 7605
  6. 906
  7. 1674
  8. 3042
  9. 855
  10. 2988
  11. 3576
  12. 4878
  13. 2478
  14. 2268
  15. 2211
  16. 2274
  17. 5724
  18. 5257
  19. 3732
  20. 4405
  21. 1300
  22. 7866
  23. 2565
  24. 1719
  25. 3731
  26. 936
  27. 3804
  28. 2871
  29. 5046
  30. 1290
  31. 3816
  32. 471
  33. 543
  34. 973
  35. 3416
  36. 4383
  37. 4608
  38. 6748
  39. 4563
  40. 6818

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