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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 980 · 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. 1.841 × 3 =
  2. 2.286 × 3 =
  3. 3.524 × 9 =
  4. 4.591 × 4 =
  5. 5.441 × 9 =
  6. 6.493 × 9 =
  7. 7.715 × 7 =
  8. 8.135 × 9 =
  9. 9.552 × 6 =
  10. 10.451 × 9 =
  11. 11.414 × 3 =
  12. 12.564 × 9 =
  13. 13.562 × 3 =
  14. 14.257 × 5 =
  15. 15.411 × 8 =
  16. 16.161 × 5 =
  17. 17.471 × 6 =
  18. 18.811 × 8 =
  19. 19.955 × 6 =
  20. 20.895 × 9 =
  21. 21.519 × 6 =
  22. 22.599 × 3 =
  23. 23.869 × 9 =
  24. 24.804 × 4 =
  25. 25.601 × 9 =
  26. 26.646 × 3 =
  27. 27.983 × 4 =
  28. 28.508 × 6 =
  29. 29.422 × 4 =
  30. 30.138 × 8 =
  31. 31.681 × 3 =
  32. 32.831 × 5 =
  33. 33.426 × 9 =
  34. 34.357 × 4 =
  35. 35.312 × 3 =
  36. 36.707 × 7 =
  37. 37.942 × 5 =
  38. 38.539 × 4 =
  39. 39.263 × 6 =
  40. 40.698 × 7 =

Answer key

  1. 2523
  2. 858
  3. 4716
  4. 2364
  5. 3969
  6. 4437
  7. 5005
  8. 1215
  9. 3312
  10. 4059
  11. 1242
  12. 5076
  13. 1686
  14. 1285
  15. 3288
  16. 805
  17. 2826
  18. 6488
  19. 5730
  20. 8055
  21. 3114
  22. 1797
  23. 7821
  24. 3216
  25. 5409
  26. 1938
  27. 3932
  28. 3048
  29. 1688
  30. 1104
  31. 2043
  32. 4155
  33. 3834
  34. 1428
  35. 936
  36. 4949
  37. 4710
  38. 2156
  39. 1578
  40. 4886

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