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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 912 · 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. 1.429 × 9 =
  2. 2.259 × 3 =
  3. 3.863 × 5 =
  4. 4.416 × 3 =
  5. 5.776 × 3 =
  6. 6.845 × 6 =
  7. 7.976 × 5 =
  8. 8.305 × 5 =
  9. 9.491 × 7 =
  10. 10.221 × 6 =
  11. 11.813 × 7 =
  12. 12.721 × 7 =
  13. 13.203 × 4 =
  14. 14.113 × 4 =
  15. 15.116 × 5 =
  16. 16.471 × 9 =
  17. 17.903 × 8 =
  18. 18.371 × 3 =
  19. 19.163 × 3 =
  20. 20.654 × 9 =
  21. 21.429 × 4 =
  22. 22.742 × 6 =
  23. 23.527 × 7 =
  24. 24.121 × 5 =
  25. 25.525 × 9 =
  26. 26.699 × 4 =
  27. 27.493 × 4 =
  28. 28.352 × 3 =
  29. 29.413 × 6 =
  30. 30.301 × 5 =
  31. 31.521 × 6 =
  32. 32.344 × 6 =
  33. 33.835 × 7 =
  34. 34.124 × 9 =
  35. 35.768 × 4 =
  36. 36.792 × 6 =
  37. 37.786 × 9 =
  38. 38.354 × 5 =
  39. 39.122 × 6 =
  40. 40.269 × 9 =

Answer key

  1. 3861
  2. 777
  3. 4315
  4. 1248
  5. 2328
  6. 5070
  7. 4880
  8. 1525
  9. 3437
  10. 1326
  11. 5691
  12. 5047
  13. 812
  14. 452
  15. 580
  16. 4239
  17. 7224
  18. 1113
  19. 489
  20. 5886
  21. 1716
  22. 4452
  23. 3689
  24. 605
  25. 4725
  26. 2796
  27. 1972
  28. 1056
  29. 2478
  30. 1505
  31. 3126
  32. 2064
  33. 5845
  34. 1116
  35. 3072
  36. 4752
  37. 7074
  38. 1770
  39. 732
  40. 2421

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