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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 772 · 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. 1.505 × 3 =
  2. 2.112 × 6 =
  3. 3.816 × 5 =
  4. 4.954 × 5 =
  5. 5.701 × 4 =
  6. 6.257 × 9 =
  7. 7.541 × 3 =
  8. 8.199 × 4 =
  9. 9.511 × 3 =
  10. 10.798 × 8 =
  11. 11.708 × 3 =
  12. 12.224 × 5 =
  13. 13.631 × 5 =
  14. 14.224 × 9 =
  15. 15.467 × 4 =
  16. 16.732 × 4 =
  17. 17.566 × 4 =
  18. 18.972 × 8 =
  19. 19.143 × 8 =
  20. 20.918 × 3 =
  21. 21.113 × 3 =
  22. 22.507 × 9 =
  23. 23.364 × 7 =
  24. 24.801 × 5 =
  25. 25.753 × 9 =
  26. 26.405 × 6 =
  27. 27.115 × 6 =
  28. 28.513 × 9 =
  29. 29.231 × 8 =
  30. 30.676 × 8 =
  31. 31.896 × 8 =
  32. 32.195 × 3 =
  33. 33.198 × 3 =
  34. 34.593 × 6 =
  35. 35.353 × 9 =
  36. 36.756 × 4 =
  37. 37.875 × 3 =
  38. 38.145 × 8 =
  39. 39.178 × 4 =
  40. 40.962 × 4 =

Answer key

  1. 1515
  2. 672
  3. 4080
  4. 4770
  5. 2804
  6. 2313
  7. 1623
  8. 796
  9. 1533
  10. 6384
  11. 2124
  12. 1120
  13. 3155
  14. 2016
  15. 1868
  16. 2928
  17. 2264
  18. 7776
  19. 1144
  20. 2754
  21. 339
  22. 4563
  23. 2548
  24. 4005
  25. 6777
  26. 2430
  27. 690
  28. 4617
  29. 1848
  30. 5408
  31. 7168
  32. 585
  33. 594
  34. 3558
  35. 3177
  36. 3024
  37. 2625
  38. 1160
  39. 712
  40. 3848

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