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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 299 · 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. 1.185 × 3 =
  2. 2.896 × 4 =
  3. 3.461 × 5 =
  4. 4.986 × 5 =
  5. 5.878 × 6 =
  6. 6.616 × 4 =
  7. 7.493 × 6 =
  8. 8.119 × 4 =
  9. 9.827 × 6 =
  10. 10.335 × 7 =
  11. 11.537 × 4 =
  12. 12.925 × 3 =
  13. 13.338 × 6 =
  14. 14.305 × 3 =
  15. 15.541 × 5 =
  16. 16.557 × 3 =
  17. 17.348 × 7 =
  18. 18.912 × 8 =
  19. 19.409 × 3 =
  20. 20.971 × 3 =
  21. 21.731 × 9 =
  22. 22.137 × 3 =
  23. 23.789 × 7 =
  24. 24.792 × 3 =
  25. 25.167 × 4 =
  26. 26.801 × 8 =
  27. 27.731 × 8 =
  28. 28.931 × 9 =
  29. 29.673 × 8 =
  30. 30.364 × 4 =
  31. 31.682 × 6 =
  32. 32.514 × 3 =
  33. 33.174 × 3 =
  34. 34.184 × 7 =
  35. 35.595 × 9 =
  36. 36.821 × 4 =
  37. 37.232 × 6 =
  38. 38.166 × 7 =
  39. 39.163 × 5 =
  40. 40.827 × 9 =

Answer key

  1. 555
  2. 3584
  3. 2305
  4. 4930
  5. 5268
  6. 2464
  7. 2958
  8. 476
  9. 4962
  10. 2345
  11. 2148
  12. 2775
  13. 2028
  14. 915
  15. 2705
  16. 1671
  17. 2436
  18. 7296
  19. 1227
  20. 2913
  21. 6579
  22. 411
  23. 5523
  24. 2376
  25. 668
  26. 6408
  27. 5848
  28. 8379
  29. 5384
  30. 1456
  31. 4092
  32. 1542
  33. 522
  34. 1288
  35. 5355
  36. 3284
  37. 1392
  38. 1162
  39. 815
  40. 7443

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