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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 137 · 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. 1.721 × 9 =
  2. 2.207 × 4 =
  3. 3.695 × 8 =
  4. 4.165 × 6 =
  5. 5.368 × 3 =
  6. 6.501 × 7 =
  7. 7.728 × 3 =
  8. 8.326 × 7 =
  9. 9.411 × 5 =
  10. 10.709 × 3 =
  11. 11.971 × 3 =
  12. 12.134 × 4 =
  13. 13.499 × 9 =
  14. 14.843 × 6 =
  15. 15.445 × 5 =
  16. 16.383 × 6 =
  17. 17.981 × 8 =
  18. 18.357 × 6 =
  19. 19.337 × 5 =
  20. 20.817 × 9 =
  21. 21.517 × 4 =
  22. 22.644 × 3 =
  23. 23.265 × 3 =
  24. 24.685 × 3 =
  25. 25.856 × 7 =
  26. 26.709 × 9 =
  27. 27.756 × 5 =
  28. 28.181 × 9 =
  29. 29.971 × 7 =
  30. 30.421 × 7 =
  31. 31.646 × 3 =
  32. 32.989 × 3 =
  33. 33.288 × 5 =
  34. 34.563 × 8 =
  35. 35.431 × 5 =
  36. 36.287 × 6 =
  37. 37.504 × 4 =
  38. 38.303 × 3 =
  39. 39.871 × 8 =
  40. 40.601 × 5 =

Answer key

  1. 6489
  2. 828
  3. 5560
  4. 990
  5. 1104
  6. 3507
  7. 2184
  8. 2282
  9. 2055
  10. 2127
  11. 2913
  12. 536
  13. 4491
  14. 5058
  15. 2225
  16. 2298
  17. 7848
  18. 2142
  19. 1685
  20. 7353
  21. 2068
  22. 1932
  23. 795
  24. 2055
  25. 5992
  26. 6381
  27. 3780
  28. 1629
  29. 6797
  30. 2947
  31. 1938
  32. 2967
  33. 1440
  34. 4504
  35. 2155
  36. 1722
  37. 2016
  38. 909
  39. 6968
  40. 3005

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