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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 599 · 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. 1.625 × 9 =
  2. 2.921 × 9 =
  3. 3.636 × 6 =
  4. 4.137 × 9 =
  5. 5.588 × 4 =
  6. 6.723 × 9 =
  7. 7.478 × 9 =
  8. 8.619 × 7 =
  9. 9.476 × 6 =
  10. 10.538 × 6 =
  11. 11.493 × 9 =
  12. 12.558 × 7 =
  13. 13.855 × 7 =
  14. 14.434 × 4 =
  15. 15.299 × 9 =
  16. 16.157 × 5 =
  17. 17.171 × 4 =
  18. 18.526 × 5 =
  19. 19.246 × 3 =
  20. 20.776 × 3 =
  21. 21.259 × 8 =
  22. 22.715 × 7 =
  23. 23.701 × 4 =
  24. 24.212 × 8 =
  25. 25.182 × 5 =
  26. 26.391 × 3 =
  27. 27.826 × 4 =
  28. 28.216 × 9 =
  29. 29.246 × 7 =
  30. 30.204 × 3 =
  31. 31.918 × 7 =
  32. 32.694 × 4 =
  33. 33.574 × 3 =
  34. 34.452 × 3 =
  35. 35.293 × 9 =
  36. 36.904 × 6 =
  37. 37.747 × 4 =
  38. 38.174 × 4 =
  39. 39.621 × 9 =
  40. 40.312 × 3 =

Answer key

  1. 5625
  2. 8289
  3. 3816
  4. 1233
  5. 2352
  6. 6507
  7. 4302
  8. 4333
  9. 2856
  10. 3228
  11. 4437
  12. 3906
  13. 5985
  14. 1736
  15. 2691
  16. 785
  17. 684
  18. 2630
  19. 738
  20. 2328
  21. 2072
  22. 5005
  23. 2804
  24. 1696
  25. 910
  26. 1173
  27. 3304
  28. 1944
  29. 1722
  30. 612
  31. 6426
  32. 2776
  33. 1722
  34. 1356
  35. 2637
  36. 5424
  37. 2988
  38. 696
  39. 5589
  40. 936

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