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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 949 · 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. 1.607 × 9 =
  2. 2.419 × 8 =
  3. 3.561 × 3 =
  4. 4.325 × 3 =
  5. 5.298 × 6 =
  6. 6.989 × 8 =
  7. 7.726 × 3 =
  8. 8.812 × 6 =
  9. 9.351 × 9 =
  10. 10.885 × 5 =
  11. 11.549 × 4 =
  12. 12.691 × 7 =
  13. 13.986 × 8 =
  14. 14.704 × 3 =
  15. 15.911 × 8 =
  16. 16.165 × 4 =
  17. 17.335 × 6 =
  18. 18.908 × 6 =
  19. 19.732 × 7 =
  20. 20.258 × 9 =
  21. 21.947 × 6 =
  22. 22.978 × 5 =
  23. 23.795 × 9 =
  24. 24.411 × 7 =
  25. 25.835 × 7 =
  26. 26.469 × 8 =
  27. 27.121 × 8 =
  28. 28.636 × 9 =
  29. 29.743 × 9 =
  30. 30.132 × 3 =
  31. 31.555 × 9 =
  32. 32.303 × 7 =
  33. 33.176 × 9 =
  34. 34.875 × 7 =
  35. 35.285 × 8 =
  36. 36.941 × 9 =
  37. 37.922 × 9 =
  38. 38.411 × 9 =
  39. 39.777 × 9 =
  40. 40.393 × 5 =

Answer key

  1. 5463
  2. 3352
  3. 1683
  4. 975
  5. 1788
  6. 7912
  7. 2178
  8. 4872
  9. 3159
  10. 4425
  11. 2196
  12. 4837
  13. 7888
  14. 2112
  15. 7288
  16. 660
  17. 2010
  18. 5448
  19. 5124
  20. 2322
  21. 5682
  22. 4890
  23. 7155
  24. 2877
  25. 5845
  26. 3752
  27. 968
  28. 5724
  29. 6687
  30. 396
  31. 4995
  32. 2121
  33. 1584
  34. 6125
  35. 2280
  36. 8469
  37. 8298
  38. 3699
  39. 6993
  40. 1965

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