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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 133 · 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. 1.243 × 4 =
  2. 2.935 × 5 =
  3. 3.311 × 6 =
  4. 4.405 × 6 =
  5. 5.551 × 6 =
  6. 6.833 × 4 =
  7. 7.875 × 3 =
  8. 8.956 × 9 =
  9. 9.171 × 9 =
  10. 10.952 × 4 =
  11. 11.801 × 5 =
  12. 12.941 × 7 =
  13. 13.832 × 6 =
  14. 14.191 × 9 =
  15. 15.248 × 5 =
  16. 16.531 × 9 =
  17. 17.982 × 7 =
  18. 18.921 × 8 =
  19. 19.527 × 8 =
  20. 20.666 × 7 =
  21. 21.652 × 9 =
  22. 22.449 × 8 =
  23. 23.692 × 7 =
  24. 24.907 × 7 =
  25. 25.422 × 4 =
  26. 26.446 × 6 =
  27. 27.658 × 7 =
  28. 28.163 × 3 =
  29. 29.503 × 4 =
  30. 30.116 × 6 =
  31. 31.305 × 5 =
  32. 32.525 × 9 =
  33. 33.522 × 5 =
  34. 34.429 × 3 =
  35. 35.511 × 7 =
  36. 36.759 × 6 =
  37. 37.287 × 6 =
  38. 38.584 × 3 =
  39. 39.176 × 9 =
  40. 40.519 × 3 =

Answer key

  1. 972
  2. 4675
  3. 1866
  4. 2430
  5. 3306
  6. 3332
  7. 2625
  8. 8604
  9. 1539
  10. 3808
  11. 4005
  12. 6587
  13. 4992
  14. 1719
  15. 1240
  16. 4779
  17. 6874
  18. 7368
  19. 4216
  20. 4662
  21. 5868
  22. 3592
  23. 4844
  24. 6349
  25. 1688
  26. 2676
  27. 4606
  28. 489
  29. 2012
  30. 696
  31. 1525
  32. 4725
  33. 2610
  34. 1287
  35. 3577
  36. 4554
  37. 1722
  38. 1752
  39. 1584
  40. 1557

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