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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 685 · 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. 1.216 × 4 =
  2. 2.401 × 9 =
  3. 3.366 × 3 =
  4. 4.515 × 6 =
  5. 5.445 × 6 =
  6. 6.561 × 3 =
  7. 7.923 × 4 =
  8. 8.598 × 3 =
  9. 9.607 × 9 =
  10. 10.159 × 5 =
  11. 11.168 × 8 =
  12. 12.222 × 4 =
  13. 13.135 × 7 =
  14. 14.626 × 7 =
  15. 15.244 × 9 =
  16. 16.628 × 8 =
  17. 17.761 × 9 =
  18. 18.566 × 7 =
  19. 19.247 × 3 =
  20. 20.881 × 4 =
  21. 21.428 × 7 =
  22. 22.218 × 9 =
  23. 23.427 × 6 =
  24. 24.785 × 8 =
  25. 25.876 × 8 =
  26. 26.879 × 4 =
  27. 27.814 × 8 =
  28. 28.643 × 6 =
  29. 29.555 × 3 =
  30. 30.191 × 6 =
  31. 31.814 × 7 =
  32. 32.801 × 8 =
  33. 33.261 × 8 =
  34. 34.859 × 3 =
  35. 35.214 × 7 =
  36. 36.599 × 9 =
  37. 37.946 × 6 =
  38. 38.585 × 6 =
  39. 39.457 × 4 =
  40. 40.319 × 7 =

Answer key

  1. 864
  2. 3609
  3. 1098
  4. 3090
  5. 2670
  6. 1683
  7. 3692
  8. 1794
  9. 5463
  10. 795
  11. 1344
  12. 888
  13. 945
  14. 4382
  15. 2196
  16. 5024
  17. 6849
  18. 3962
  19. 741
  20. 3524
  21. 2996
  22. 1962
  23. 2562
  24. 6280
  25. 7008
  26. 3516
  27. 6512
  28. 3858
  29. 1665
  30. 1146
  31. 5698
  32. 6408
  33. 2088
  34. 2577
  35. 1498
  36. 5391
  37. 5676
  38. 3510
  39. 1828
  40. 2233

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