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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 348 · 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. 1.189 × 8 =
  2. 2.365 × 3 =
  3. 3.933 × 4 =
  4. 4.786 × 8 =
  5. 5.869 × 3 =
  6. 6.351 × 9 =
  7. 7.347 × 3 =
  8. 8.499 × 5 =
  9. 9.688 × 3 =
  10. 10.271 × 5 =
  11. 11.585 × 4 =
  12. 12.911 × 4 =
  13. 13.932 × 6 =
  14. 14.385 × 3 =
  15. 15.118 × 9 =
  16. 16.345 × 9 =
  17. 17.142 × 8 =
  18. 18.218 × 9 =
  19. 19.771 × 8 =
  20. 20.742 × 4 =
  21. 21.611 × 3 =
  22. 22.525 × 5 =
  23. 23.414 × 4 =
  24. 24.711 × 8 =
  25. 25.777 × 7 =
  26. 26.893 × 4 =
  27. 27.382 × 3 =
  28. 28.772 × 7 =
  29. 29.688 × 7 =
  30. 30.957 × 9 =
  31. 31.856 × 5 =
  32. 32.734 × 8 =
  33. 33.283 × 3 =
  34. 34.741 × 3 =
  35. 35.128 × 5 =
  36. 36.959 × 9 =
  37. 37.188 × 3 =
  38. 38.742 × 7 =
  39. 39.766 × 4 =
  40. 40.115 × 3 =

Answer key

  1. 1512
  2. 1095
  3. 3732
  4. 6288
  5. 2607
  6. 3159
  7. 1041
  8. 2495
  9. 2064
  10. 1355
  11. 2340
  12. 3644
  13. 5592
  14. 1155
  15. 1062
  16. 3105
  17. 1136
  18. 1962
  19. 6168
  20. 2968
  21. 1833
  22. 2625
  23. 1656
  24. 5688
  25. 5439
  26. 3572
  27. 1146
  28. 5404
  29. 4816
  30. 8613
  31. 4280
  32. 5872
  33. 849
  34. 2223
  35. 640
  36. 8631
  37. 564
  38. 5194
  39. 3064
  40. 345

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