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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 10 · 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. 1.849 × 9 =
  2. 2.383 × 6 =
  3. 3.795 × 5 =
  4. 4.867 × 4 =
  5. 5.242 × 9 =
  6. 6.307 × 5 =
  7. 7.903 × 4 =
  8. 8.477 × 6 =
  9. 9.872 × 5 =
  10. 10.545 × 3 =
  11. 11.312 × 3 =
  12. 12.341 × 9 =
  13. 13.271 × 7 =
  14. 14.802 × 4 =
  15. 15.762 × 9 =
  16. 16.251 × 3 =
  17. 17.244 × 3 =
  18. 18.455 × 4 =
  19. 19.296 × 4 =
  20. 20.782 × 3 =
  21. 21.581 × 9 =
  22. 22.442 × 9 =
  23. 23.128 × 3 =
  24. 24.539 × 5 =
  25. 25.379 × 8 =
  26. 26.392 × 6 =
  27. 27.177 × 8 =
  28. 28.554 × 5 =
  29. 29.879 × 5 =
  30. 30.333 × 3 =
  31. 31.141 × 4 =
  32. 32.517 × 8 =
  33. 33.539 × 6 =
  34. 34.971 × 3 =
  35. 35.304 × 4 =
  36. 36.695 × 5 =
  37. 37.245 × 7 =
  38. 38.735 × 7 =
  39. 39.559 × 9 =
  40. 40.606 × 4 =

Answer key

  1. 7641
  2. 2298
  3. 3975
  4. 3468
  5. 2178
  6. 1535
  7. 3612
  8. 2862
  9. 4360
  10. 1635
  11. 936
  12. 3069
  13. 1897
  14. 3208
  15. 6858
  16. 753
  17. 732
  18. 1820
  19. 1184
  20. 2346
  21. 5229
  22. 3978
  23. 384
  24. 2695
  25. 3032
  26. 2352
  27. 1416
  28. 2770
  29. 4395
  30. 999
  31. 564
  32. 4136
  33. 3234
  34. 2913
  35. 1216
  36. 3475
  37. 1715
  38. 5145
  39. 5031
  40. 2424

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