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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 910 · 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. 1.668 × 7 =
  2. 2.661 × 8 =
  3. 3.271 × 6 =
  4. 4.792 × 3 =
  5. 5.912 × 5 =
  6. 6.663 × 6 =
  7. 7.562 × 5 =
  8. 8.329 × 5 =
  9. 9.326 × 3 =
  10. 10.778 × 6 =
  11. 11.499 × 5 =
  12. 12.392 × 9 =
  13. 13.781 × 9 =
  14. 14.338 × 8 =
  15. 15.241 × 8 =
  16. 16.932 × 9 =
  17. 17.911 × 6 =
  18. 18.331 × 4 =
  19. 19.873 × 3 =
  20. 20.775 × 5 =
  21. 21.333 × 5 =
  22. 22.856 × 4 =
  23. 23.301 × 3 =
  24. 24.394 × 9 =
  25. 25.944 × 9 =
  26. 26.591 × 3 =
  27. 27.689 × 6 =
  28. 28.481 × 5 =
  29. 29.802 × 4 =
  30. 30.496 × 5 =
  31. 31.305 × 7 =
  32. 32.229 × 4 =
  33. 33.378 × 9 =
  34. 34.801 × 8 =
  35. 35.571 × 9 =
  36. 36.161 × 4 =
  37. 37.694 × 5 =
  38. 38.387 × 6 =
  39. 39.737 × 9 =
  40. 40.286 × 9 =

Answer key

  1. 4676
  2. 5288
  3. 1626
  4. 2376
  5. 4560
  6. 3978
  7. 2810
  8. 1645
  9. 978
  10. 4668
  11. 2495
  12. 3528
  13. 7029
  14. 2704
  15. 1928
  16. 8388
  17. 5466
  18. 1324
  19. 2619
  20. 3875
  21. 1665
  22. 3424
  23. 903
  24. 3546
  25. 8496
  26. 1773
  27. 4134
  28. 2405
  29. 3208
  30. 2480
  31. 2135
  32. 916
  33. 3402
  34. 6408
  35. 5139
  36. 644
  37. 3470
  38. 2322
  39. 6633
  40. 2574

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