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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 505 · 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. 1.957 × 5 =
  2. 2.728 × 6 =
  3. 3.964 × 6 =
  4. 4.412 × 4 =
  5. 5.167 × 9 =
  6. 6.172 × 3 =
  7. 7.659 × 3 =
  8. 8.364 × 5 =
  9. 9.238 × 7 =
  10. 10.613 × 6 =
  11. 11.231 × 7 =
  12. 12.711 × 3 =
  13. 13.519 × 3 =
  14. 14.293 × 7 =
  15. 15.945 × 4 =
  16. 16.743 × 3 =
  17. 17.427 × 6 =
  18. 18.414 × 3 =
  19. 19.871 × 8 =
  20. 20.892 × 3 =
  21. 21.243 × 8 =
  22. 22.298 × 5 =
  23. 23.969 × 6 =
  24. 24.845 × 3 =
  25. 25.752 × 9 =
  26. 26.359 × 7 =
  27. 27.895 × 6 =
  28. 28.353 × 5 =
  29. 29.273 × 6 =
  30. 30.349 × 8 =
  31. 31.162 × 5 =
  32. 32.842 × 6 =
  33. 33.275 × 5 =
  34. 34.886 × 8 =
  35. 35.687 × 3 =
  36. 36.536 × 7 =
  37. 37.777 × 7 =
  38. 38.148 × 4 =
  39. 39.933 × 5 =
  40. 40.593 × 8 =

Answer key

  1. 4785
  2. 4368
  3. 5784
  4. 1648
  5. 1503
  6. 516
  7. 1977
  8. 1820
  9. 1666
  10. 3678
  11. 1617
  12. 2133
  13. 1557
  14. 2051
  15. 3780
  16. 2229
  17. 2562
  18. 1242
  19. 6968
  20. 2676
  21. 1944
  22. 1490
  23. 5814
  24. 2535
  25. 6768
  26. 2513
  27. 5370
  28. 1765
  29. 1638
  30. 2792
  31. 810
  32. 5052
  33. 1375
  34. 7088
  35. 2061
  36. 3752
  37. 5439
  38. 592
  39. 4665
  40. 4744

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