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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 849 · 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. 1.873 × 7 =
  2. 2.195 × 6 =
  3. 3.764 × 4 =
  4. 4.973 × 7 =
  5. 5.334 × 3 =
  6. 6.119 × 3 =
  7. 7.237 × 3 =
  8. 8.817 × 8 =
  9. 9.481 × 7 =
  10. 10.697 × 7 =
  11. 11.198 × 5 =
  12. 12.179 × 3 =
  13. 13.972 × 5 =
  14. 14.624 × 6 =
  15. 15.646 × 4 =
  16. 16.444 × 8 =
  17. 17.151 × 6 =
  18. 18.181 × 4 =
  19. 19.431 × 7 =
  20. 20.643 × 6 =
  21. 21.204 × 9 =
  22. 22.303 × 4 =
  23. 23.872 × 3 =
  24. 24.945 × 7 =
  25. 25.238 × 7 =
  26. 26.962 × 5 =
  27. 27.513 × 9 =
  28. 28.257 × 8 =
  29. 29.303 × 6 =
  30. 30.638 × 7 =
  31. 31.261 × 5 =
  32. 32.548 × 3 =
  33. 33.362 × 6 =
  34. 34.571 × 7 =
  35. 35.196 × 4 =
  36. 36.496 × 5 =
  37. 37.903 × 6 =
  38. 38.469 × 4 =
  39. 39.801 × 7 =
  40. 40.293 × 4 =

Answer key

  1. 6111
  2. 1170
  3. 3056
  4. 6811
  5. 1002
  6. 357
  7. 711
  8. 6536
  9. 3367
  10. 4879
  11. 990
  12. 537
  13. 4860
  14. 3744
  15. 2584
  16. 3552
  17. 906
  18. 724
  19. 3017
  20. 3858
  21. 1836
  22. 1212
  23. 2616
  24. 6615
  25. 1666
  26. 4810
  27. 4617
  28. 2056
  29. 1818
  30. 4466
  31. 1305
  32. 1644
  33. 2172
  34. 3997
  35. 784
  36. 2480
  37. 5418
  38. 1876
  39. 5607
  40. 1172

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