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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 104 · 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. 1.464 × 7 =
  2. 2.966 × 6 =
  3. 3.803 × 4 =
  4. 4.587 × 5 =
  5. 5.879 × 5 =
  6. 6.925 × 6 =
  7. 7.177 × 6 =
  8. 8.416 × 3 =
  9. 9.123 × 7 =
  10. 10.905 × 8 =
  11. 11.396 × 6 =
  12. 12.697 × 7 =
  13. 13.551 × 8 =
  14. 14.884 × 9 =
  15. 15.232 × 5 =
  16. 16.584 × 9 =
  17. 17.572 × 4 =
  18. 18.126 × 8 =
  19. 19.961 × 9 =
  20. 20.156 × 4 =
  21. 21.591 × 6 =
  22. 22.796 × 8 =
  23. 23.415 × 9 =
  24. 24.484 × 3 =
  25. 25.139 × 4 =
  26. 26.666 × 3 =
  27. 27.413 × 4 =
  28. 28.912 × 5 =
  29. 29.126 × 6 =
  30. 30.881 × 9 =
  31. 31.453 × 4 =
  32. 32.615 × 4 =
  33. 33.534 × 4 =
  34. 34.218 × 7 =
  35. 35.226 × 5 =
  36. 36.928 × 3 =
  37. 37.289 × 6 =
  38. 38.326 × 6 =
  39. 39.624 × 9 =
  40. 40.188 × 5 =

Answer key

  1. 3248
  2. 5796
  3. 3212
  4. 2935
  5. 4395
  6. 5550
  7. 1062
  8. 1248
  9. 861
  10. 7240
  11. 2376
  12. 4879
  13. 4408
  14. 7956
  15. 1160
  16. 5256
  17. 2288
  18. 1008
  19. 8649
  20. 624
  21. 3546
  22. 6368
  23. 3735
  24. 1452
  25. 556
  26. 1998
  27. 1652
  28. 4560
  29. 756
  30. 7929
  31. 1812
  32. 2460
  33. 2136
  34. 1526
  35. 1130
  36. 2784
  37. 1734
  38. 1956
  39. 5616
  40. 940

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