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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 361 · 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. 1.129 × 4 =
  2. 2.493 × 4 =
  3. 3.374 × 8 =
  4. 4.417 × 4 =
  5. 5.196 × 6 =
  6. 6.671 × 4 =
  7. 7.763 × 9 =
  8. 8.181 × 9 =
  9. 9.739 × 4 =
  10. 10.303 × 5 =
  11. 11.466 × 3 =
  12. 12.376 × 4 =
  13. 13.984 × 3 =
  14. 14.521 × 6 =
  15. 15.932 × 4 =
  16. 16.638 × 4 =
  17. 17.927 × 8 =
  18. 18.227 × 9 =
  19. 19.745 × 4 =
  20. 20.431 × 4 =
  21. 21.475 × 4 =
  22. 22.721 × 5 =
  23. 23.463 × 4 =
  24. 24.415 × 4 =
  25. 25.194 × 5 =
  26. 26.726 × 3 =
  27. 27.511 × 7 =
  28. 28.536 × 3 =
  29. 29.795 × 9 =
  30. 30.187 × 9 =
  31. 31.787 × 8 =
  32. 32.205 × 3 =
  33. 33.839 × 6 =
  34. 34.164 × 5 =
  35. 35.342 × 5 =
  36. 36.925 × 6 =
  37. 37.455 × 7 =
  38. 38.681 × 6 =
  39. 39.197 × 4 =
  40. 40.949 × 8 =

Answer key

  1. 516
  2. 1972
  3. 2992
  4. 1668
  5. 1176
  6. 2684
  7. 6867
  8. 1629
  9. 2956
  10. 1515
  11. 1398
  12. 1504
  13. 2952
  14. 3126
  15. 3728
  16. 2552
  17. 7416
  18. 2043
  19. 2980
  20. 1724
  21. 1900
  22. 3605
  23. 1852
  24. 1660
  25. 970
  26. 2178
  27. 3577
  28. 1608
  29. 7155
  30. 1683
  31. 6296
  32. 615
  33. 5034
  34. 820
  35. 1710
  36. 5550
  37. 3185
  38. 4086
  39. 788
  40. 7592

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