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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 405 · 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. 1.771 × 6 =
  2. 2.938 × 7 =
  3. 3.858 × 9 =
  4. 4.724 × 8 =
  5. 5.435 × 5 =
  6. 6.916 × 4 =
  7. 7.359 × 8 =
  8. 8.447 × 6 =
  9. 9.193 × 8 =
  10. 10.877 × 9 =
  11. 11.286 × 4 =
  12. 12.688 × 3 =
  13. 13.275 × 5 =
  14. 14.585 × 7 =
  15. 15.937 × 9 =
  16. 16.761 × 5 =
  17. 17.876 × 7 =
  18. 18.125 × 3 =
  19. 19.709 × 9 =
  20. 20.558 × 8 =
  21. 21.874 × 9 =
  22. 22.439 × 8 =
  23. 23.792 × 9 =
  24. 24.529 × 3 =
  25. 25.588 × 9 =
  26. 26.527 × 7 =
  27. 27.562 × 6 =
  28. 28.867 × 8 =
  29. 29.344 × 4 =
  30. 30.168 × 3 =
  31. 31.252 × 3 =
  32. 32.145 × 3 =
  33. 33.636 × 7 =
  34. 34.321 × 8 =
  35. 35.617 × 4 =
  36. 36.519 × 4 =
  37. 37.165 × 6 =
  38. 38.946 × 3 =
  39. 39.758 × 3 =
  40. 40.783 × 5 =

Answer key

  1. 4626
  2. 6566
  3. 7722
  4. 5792
  5. 2175
  6. 3664
  7. 2872
  8. 2682
  9. 1544
  10. 7893
  11. 1144
  12. 2064
  13. 1375
  14. 4095
  15. 8433
  16. 3805
  17. 6132
  18. 375
  19. 6381
  20. 4464
  21. 7866
  22. 3512
  23. 7128
  24. 1587
  25. 5292
  26. 3689
  27. 3372
  28. 6936
  29. 1376
  30. 504
  31. 756
  32. 435
  33. 4452
  34. 2568
  35. 2468
  36. 2076
  37. 990
  38. 2838
  39. 2274
  40. 3915

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