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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 746 · 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. 1.661 × 3 =
  2. 2.594 × 5 =
  3. 3.441 × 3 =
  4. 4.511 × 7 =
  5. 5.576 × 4 =
  6. 6.677 × 9 =
  7. 7.621 × 3 =
  8. 8.919 × 7 =
  9. 9.591 × 9 =
  10. 10.887 × 7 =
  11. 11.654 × 5 =
  12. 12.331 × 7 =
  13. 13.896 × 4 =
  14. 14.663 × 7 =
  15. 15.688 × 6 =
  16. 16.191 × 9 =
  17. 17.428 × 7 =
  18. 18.251 × 8 =
  19. 19.644 × 3 =
  20. 20.179 × 9 =
  21. 21.484 × 9 =
  22. 22.746 × 6 =
  23. 23.467 × 3 =
  24. 24.807 × 8 =
  25. 25.637 × 4 =
  26. 26.648 × 8 =
  27. 27.747 × 5 =
  28. 28.241 × 3 =
  29. 29.754 × 3 =
  30. 30.946 × 6 =
  31. 31.955 × 8 =
  32. 32.497 × 8 =
  33. 33.187 × 5 =
  34. 34.542 × 9 =
  35. 35.334 × 7 =
  36. 36.117 × 7 =
  37. 37.434 × 6 =
  38. 38.739 × 5 =
  39. 39.774 × 4 =
  40. 40.218 × 5 =

Answer key

  1. 1983
  2. 2970
  3. 1323
  4. 3577
  5. 2304
  6. 6093
  7. 1863
  8. 6433
  9. 5319
  10. 6209
  11. 3270
  12. 2317
  13. 3584
  14. 4641
  15. 4128
  16. 1719
  17. 2996
  18. 2008
  19. 1932
  20. 1611
  21. 4356
  22. 4476
  23. 1401
  24. 6456
  25. 2548
  26. 5184
  27. 3735
  28. 723
  29. 2262
  30. 5676
  31. 7640
  32. 3976
  33. 935
  34. 4878
  35. 2338
  36. 819
  37. 2604
  38. 3695
  39. 3096
  40. 1090

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