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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 477 · 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. 1.875 × 5 =
  2. 2.979 × 3 =
  3. 3.771 × 5 =
  4. 4.891 × 4 =
  5. 5.882 × 4 =
  6. 6.805 × 6 =
  7. 7.874 × 8 =
  8. 8.362 × 5 =
  9. 9.193 × 9 =
  10. 10.187 × 9 =
  11. 11.311 × 7 =
  12. 12.845 × 3 =
  13. 13.892 × 5 =
  14. 14.697 × 3 =
  15. 15.846 × 8 =
  16. 16.671 × 8 =
  17. 17.506 × 8 =
  18. 18.655 × 8 =
  19. 19.192 × 4 =
  20. 20.951 × 3 =
  21. 21.777 × 4 =
  22. 22.307 × 5 =
  23. 23.616 × 5 =
  24. 24.858 × 8 =
  25. 25.975 × 8 =
  26. 26.395 × 3 =
  27. 27.965 × 8 =
  28. 28.716 × 9 =
  29. 29.599 × 5 =
  30. 30.985 × 7 =
  31. 31.827 × 8 =
  32. 32.847 × 8 =
  33. 33.346 × 7 =
  34. 34.873 × 4 =
  35. 35.942 × 8 =
  36. 36.797 × 7 =
  37. 37.303 × 9 =
  38. 38.317 × 8 =
  39. 39.812 × 6 =
  40. 40.154 × 5 =

Answer key

  1. 4375
  2. 2937
  3. 3855
  4. 3564
  5. 3528
  6. 4830
  7. 6992
  8. 1810
  9. 1737
  10. 1683
  11. 2177
  12. 2535
  13. 4460
  14. 2091
  15. 6768
  16. 5368
  17. 4048
  18. 5240
  19. 768
  20. 2853
  21. 3108
  22. 1535
  23. 3080
  24. 6864
  25. 7800
  26. 1185
  27. 7720
  28. 6444
  29. 2995
  30. 6895
  31. 6616
  32. 6776
  33. 2422
  34. 3492
  35. 7536
  36. 5579
  37. 2727
  38. 2536
  39. 4872
  40. 770

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