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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 904 · 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. 1.381 × 5 =
  2. 2.605 × 6 =
  3. 3.192 × 8 =
  4. 4.772 × 5 =
  5. 5.554 × 8 =
  6. 6.285 × 6 =
  7. 7.301 × 4 =
  8. 8.191 × 9 =
  9. 9.884 × 5 =
  10. 10.589 × 4 =
  11. 11.124 × 8 =
  12. 12.649 × 3 =
  13. 13.869 × 3 =
  14. 14.325 × 6 =
  15. 15.261 × 4 =
  16. 16.142 × 4 =
  17. 17.445 × 6 =
  18. 18.384 × 6 =
  19. 19.612 × 8 =
  20. 20.616 × 8 =
  21. 21.635 × 8 =
  22. 22.365 × 6 =
  23. 23.235 × 9 =
  24. 24.314 × 6 =
  25. 25.346 × 5 =
  26. 26.293 × 3 =
  27. 27.352 × 5 =
  28. 28.621 × 8 =
  29. 29.256 × 3 =
  30. 30.816 × 9 =
  31. 31.451 × 6 =
  32. 32.551 × 8 =
  33. 33.822 × 5 =
  34. 34.206 × 3 =
  35. 35.322 × 7 =
  36. 36.915 × 4 =
  37. 37.831 × 6 =
  38. 38.482 × 3 =
  39. 39.126 × 9 =
  40. 40.714 × 8 =

Answer key

  1. 1905
  2. 3630
  3. 1536
  4. 3860
  5. 4432
  6. 1710
  7. 1204
  8. 1719
  9. 4420
  10. 2356
  11. 992
  12. 1947
  13. 2607
  14. 1950
  15. 1044
  16. 568
  17. 2670
  18. 2304
  19. 4896
  20. 4928
  21. 5080
  22. 2190
  23. 2115
  24. 1884
  25. 1730
  26. 879
  27. 1760
  28. 4968
  29. 768
  30. 7344
  31. 2706
  32. 4408
  33. 4110
  34. 618
  35. 2254
  36. 3660
  37. 4986
  38. 1446
  39. 1134
  40. 5712

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