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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 553 · 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. 1.621 × 7 =
  2. 2.475 × 7 =
  3. 3.457 × 8 =
  4. 4.593 × 8 =
  5. 5.788 × 6 =
  6. 6.682 × 7 =
  7. 7.494 × 8 =
  8. 8.299 × 6 =
  9. 9.956 × 4 =
  10. 10.159 × 6 =
  11. 11.402 × 8 =
  12. 12.195 × 7 =
  13. 13.697 × 3 =
  14. 14.602 × 6 =
  15. 15.381 × 8 =
  16. 16.932 × 8 =
  17. 17.279 × 6 =
  18. 18.702 × 3 =
  19. 19.941 × 4 =
  20. 20.152 × 5 =
  21. 21.396 × 4 =
  22. 22.688 × 5 =
  23. 23.128 × 3 =
  24. 24.195 × 4 =
  25. 25.289 × 7 =
  26. 26.381 × 6 =
  27. 27.476 × 4 =
  28. 28.775 × 3 =
  29. 29.414 × 7 =
  30. 30.889 × 7 =
  31. 31.461 × 4 =
  32. 32.985 × 6 =
  33. 33.402 × 4 =
  34. 34.931 × 5 =
  35. 35.211 × 3 =
  36. 36.575 × 3 =
  37. 37.317 × 7 =
  38. 38.223 × 4 =
  39. 39.592 × 6 =
  40. 40.524 × 3 =

Answer key

  1. 4347
  2. 3325
  3. 3656
  4. 4744
  5. 4728
  6. 4774
  7. 3952
  8. 1794
  9. 3824
  10. 954
  11. 3216
  12. 1365
  13. 2091
  14. 3612
  15. 3048
  16. 7456
  17. 1674
  18. 2106
  19. 3764
  20. 760
  21. 1584
  22. 3440
  23. 384
  24. 780
  25. 2023
  26. 2286
  27. 1904
  28. 2325
  29. 2898
  30. 6223
  31. 1844
  32. 5910
  33. 1608
  34. 4655
  35. 633
  36. 1725
  37. 2219
  38. 892
  39. 3552
  40. 1572

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