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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 891 · 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. 1.767 × 3 =
  2. 2.251 × 6 =
  3. 3.899 × 5 =
  4. 4.147 × 7 =
  5. 5.538 × 9 =
  6. 6.683 × 5 =
  7. 7.936 × 5 =
  8. 8.452 × 3 =
  9. 9.715 × 3 =
  10. 10.877 × 9 =
  11. 11.973 × 8 =
  12. 12.326 × 3 =
  13. 13.826 × 3 =
  14. 14.428 × 8 =
  15. 15.868 × 4 =
  16. 16.421 × 9 =
  17. 17.807 × 3 =
  18. 18.942 × 5 =
  19. 19.519 × 9 =
  20. 20.258 × 7 =
  21. 21.694 × 5 =
  22. 22.509 × 6 =
  23. 23.545 × 4 =
  24. 24.447 × 6 =
  25. 25.254 × 3 =
  26. 26.194 × 6 =
  27. 27.504 × 4 =
  28. 28.143 × 3 =
  29. 29.655 × 7 =
  30. 30.407 × 4 =
  31. 31.695 × 8 =
  32. 32.262 × 4 =
  33. 33.341 × 3 =
  34. 34.156 × 6 =
  35. 35.326 × 8 =
  36. 36.931 × 3 =
  37. 37.286 × 4 =
  38. 38.434 × 6 =
  39. 39.356 × 3 =
  40. 40.904 × 3 =

Answer key

  1. 2301
  2. 1506
  3. 4495
  4. 1029
  5. 4842
  6. 3415
  7. 4680
  8. 1356
  9. 2145
  10. 7893
  11. 7784
  12. 978
  13. 2478
  14. 3424
  15. 3472
  16. 3789
  17. 2421
  18. 4710
  19. 4671
  20. 1806
  21. 3470
  22. 3054
  23. 2180
  24. 2682
  25. 762
  26. 1164
  27. 2016
  28. 429
  29. 4585
  30. 1628
  31. 5560
  32. 1048
  33. 1023
  34. 936
  35. 2608
  36. 2793
  37. 1144
  38. 2604
  39. 1068
  40. 2712

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