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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 518 · 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. 1.131 × 7 =
  2. 2.441 × 9 =
  3. 3.878 × 4 =
  4. 4.525 × 9 =
  5. 5.583 × 5 =
  6. 6.352 × 6 =
  7. 7.217 × 4 =
  8. 8.427 × 8 =
  9. 9.152 × 8 =
  10. 10.123 × 6 =
  11. 11.393 × 3 =
  12. 12.715 × 3 =
  13. 13.264 × 8 =
  14. 14.353 × 7 =
  15. 15.883 × 5 =
  16. 16.655 × 9 =
  17. 17.235 × 8 =
  18. 18.877 × 4 =
  19. 19.271 × 3 =
  20. 20.378 × 9 =
  21. 21.257 × 7 =
  22. 22.408 × 7 =
  23. 23.325 × 8 =
  24. 24.693 × 8 =
  25. 25.703 × 4 =
  26. 26.466 × 6 =
  27. 27.418 × 4 =
  28. 28.611 × 4 =
  29. 29.892 × 5 =
  30. 30.688 × 7 =
  31. 31.939 × 7 =
  32. 32.401 × 5 =
  33. 33.851 × 8 =
  34. 34.863 × 7 =
  35. 35.304 × 9 =
  36. 36.811 × 4 =
  37. 37.311 × 3 =
  38. 38.957 × 5 =
  39. 39.905 × 3 =
  40. 40.231 × 9 =

Answer key

  1. 917
  2. 3969
  3. 3512
  4. 4725
  5. 2915
  6. 2112
  7. 868
  8. 3416
  9. 1216
  10. 738
  11. 1179
  12. 2145
  13. 2112
  14. 2471
  15. 4415
  16. 5895
  17. 1880
  18. 3508
  19. 813
  20. 3402
  21. 1799
  22. 2856
  23. 2600
  24. 5544
  25. 2812
  26. 2796
  27. 1672
  28. 2444
  29. 4460
  30. 4816
  31. 6573
  32. 2005
  33. 6808
  34. 6041
  35. 2736
  36. 3244
  37. 933
  38. 4785
  39. 2715
  40. 2079

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