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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 151 · 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. 1.404 × 5 =
  2. 2.451 × 9 =
  3. 3.618 × 7 =
  4. 4.341 × 5 =
  5. 5.637 × 4 =
  6. 6.481 × 7 =
  7. 7.511 × 8 =
  8. 8.208 × 6 =
  9. 9.154 × 9 =
  10. 10.297 × 3 =
  11. 11.292 × 4 =
  12. 12.781 × 3 =
  13. 13.244 × 9 =
  14. 14.285 × 7 =
  15. 15.828 × 4 =
  16. 16.676 × 8 =
  17. 17.915 × 3 =
  18. 18.674 × 3 =
  19. 19.651 × 8 =
  20. 20.691 × 9 =
  21. 21.759 × 3 =
  22. 22.261 × 3 =
  23. 23.243 × 9 =
  24. 24.344 × 6 =
  25. 25.251 × 6 =
  26. 26.384 × 5 =
  27. 27.381 × 8 =
  28. 28.906 × 4 =
  29. 29.814 × 6 =
  30. 30.637 × 5 =
  31. 31.171 × 5 =
  32. 32.985 × 8 =
  33. 33.518 × 5 =
  34. 34.618 × 6 =
  35. 35.721 × 8 =
  36. 36.722 × 3 =
  37. 37.431 × 4 =
  38. 38.866 × 7 =
  39. 39.468 × 7 =
  40. 40.776 × 3 =

Answer key

  1. 2020
  2. 4059
  3. 4326
  4. 1705
  5. 2548
  6. 3367
  7. 4088
  8. 1248
  9. 1386
  10. 891
  11. 1168
  12. 2343
  13. 2196
  14. 1995
  15. 3312
  16. 5408
  17. 2745
  18. 2022
  19. 5208
  20. 6219
  21. 2277
  22. 783
  23. 2187
  24. 2064
  25. 1506
  26. 1920
  27. 3048
  28. 3624
  29. 4884
  30. 3185
  31. 855
  32. 7880
  33. 2590
  34. 3708
  35. 5768
  36. 2166
  37. 1724
  38. 6062
  39. 3276
  40. 2328

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