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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 947 · 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. 1.792 × 5 =
  2. 2.768 × 3 =
  3. 3.903 × 7 =
  4. 4.636 × 9 =
  5. 5.558 × 3 =
  6. 6.757 × 4 =
  7. 7.192 × 3 =
  8. 8.759 × 5 =
  9. 9.798 × 6 =
  10. 10.533 × 5 =
  11. 11.501 × 4 =
  12. 12.719 × 5 =
  13. 13.844 × 5 =
  14. 14.476 × 8 =
  15. 15.511 × 3 =
  16. 16.675 × 7 =
  17. 17.247 × 7 =
  18. 18.694 × 5 =
  19. 19.271 × 6 =
  20. 20.879 × 4 =
  21. 21.488 × 4 =
  22. 22.583 × 3 =
  23. 23.215 × 8 =
  24. 24.811 × 6 =
  25. 25.375 × 3 =
  26. 26.597 × 4 =
  27. 27.871 × 5 =
  28. 28.577 × 9 =
  29. 29.327 × 3 =
  30. 30.974 × 9 =
  31. 31.881 × 7 =
  32. 32.401 × 5 =
  33. 33.221 × 9 =
  34. 34.922 × 9 =
  35. 35.747 × 6 =
  36. 36.631 × 4 =
  37. 37.449 × 5 =
  38. 38.333 × 3 =
  39. 39.455 × 3 =
  40. 40.721 × 9 =

Answer key

  1. 3960
  2. 2304
  3. 6321
  4. 5724
  5. 1674
  6. 3028
  7. 576
  8. 3795
  9. 4788
  10. 2665
  11. 2004
  12. 3595
  13. 4220
  14. 3808
  15. 1533
  16. 4725
  17. 1729
  18. 3470
  19. 1626
  20. 3516
  21. 1952
  22. 1749
  23. 1720
  24. 4866
  25. 1125
  26. 2388
  27. 4355
  28. 5193
  29. 981
  30. 8766
  31. 6167
  32. 2005
  33. 1989
  34. 8298
  35. 4482
  36. 2524
  37. 2245
  38. 999
  39. 1365
  40. 6489

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