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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 726 · 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. 1.718 × 3 =
  2. 2.703 × 9 =
  3. 3.232 × 7 =
  4. 4.257 × 4 =
  5. 5.669 × 4 =
  6. 6.347 × 9 =
  7. 7.651 × 4 =
  8. 8.237 × 6 =
  9. 9.601 × 4 =
  10. 10.285 × 8 =
  11. 11.975 × 9 =
  12. 12.591 × 7 =
  13. 13.503 × 7 =
  14. 14.832 × 6 =
  15. 15.565 × 8 =
  16. 16.681 × 5 =
  17. 17.966 × 9 =
  18. 18.877 × 6 =
  19. 19.598 × 3 =
  20. 20.352 × 7 =
  21. 21.261 × 7 =
  22. 22.471 × 3 =
  23. 23.681 × 9 =
  24. 24.725 × 7 =
  25. 25.797 × 8 =
  26. 26.926 × 9 =
  27. 27.254 × 4 =
  28. 28.585 × 6 =
  29. 29.124 × 3 =
  30. 30.824 × 4 =
  31. 31.443 × 8 =
  32. 32.604 × 5 =
  33. 33.275 × 6 =
  34. 34.126 × 6 =
  35. 35.431 × 4 =
  36. 36.305 × 9 =
  37. 37.759 × 8 =
  38. 38.421 × 5 =
  39. 39.711 × 9 =
  40. 40.911 × 9 =

Answer key

  1. 2154
  2. 6327
  3. 1624
  4. 1028
  5. 2676
  6. 3123
  7. 2604
  8. 1422
  9. 2404
  10. 2280
  11. 8775
  12. 4137
  13. 3521
  14. 4992
  15. 4520
  16. 3405
  17. 8694
  18. 5262
  19. 1794
  20. 2464
  21. 1827
  22. 1413
  23. 6129
  24. 5075
  25. 6376
  26. 8334
  27. 1016
  28. 3510
  29. 372
  30. 3296
  31. 3544
  32. 3020
  33. 1650
  34. 756
  35. 1724
  36. 2745
  37. 6072
  38. 2105
  39. 6399
  40. 8199

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