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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 818 · 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. 1.407 × 8 =
  2. 2.705 × 7 =
  3. 3.761 × 3 =
  4. 4.892 × 9 =
  5. 5.894 × 4 =
  6. 6.951 × 4 =
  7. 7.497 × 4 =
  8. 8.207 × 7 =
  9. 9.757 × 5 =
  10. 10.136 × 9 =
  11. 11.301 × 9 =
  12. 12.936 × 9 =
  13. 13.863 × 9 =
  14. 14.444 × 6 =
  15. 15.812 × 7 =
  16. 16.522 × 5 =
  17. 17.145 × 5 =
  18. 18.664 × 8 =
  19. 19.558 × 3 =
  20. 20.807 × 6 =
  21. 21.819 × 8 =
  22. 22.841 × 9 =
  23. 23.241 × 9 =
  24. 24.328 × 4 =
  25. 25.781 × 8 =
  26. 26.453 × 7 =
  27. 27.274 × 6 =
  28. 28.169 × 4 =
  29. 29.284 × 9 =
  30. 30.862 × 3 =
  31. 31.743 × 3 =
  32. 32.637 × 9 =
  33. 33.222 × 4 =
  34. 34.201 × 9 =
  35. 35.871 × 6 =
  36. 36.197 × 6 =
  37. 37.212 × 5 =
  38. 38.538 × 9 =
  39. 39.121 × 8 =
  40. 40.831 × 8 =

Answer key

  1. 3256
  2. 4935
  3. 2283
  4. 8028
  5. 3576
  6. 3804
  7. 1988
  8. 1449
  9. 3785
  10. 1224
  11. 2709
  12. 8424
  13. 7767
  14. 2664
  15. 5684
  16. 2610
  17. 725
  18. 5312
  19. 1674
  20. 4842
  21. 6552
  22. 7569
  23. 2169
  24. 1312
  25. 6248
  26. 3171
  27. 1644
  28. 676
  29. 2556
  30. 2586
  31. 2229
  32. 5733
  33. 888
  34. 1809
  35. 5226
  36. 1182
  37. 1060
  38. 4842
  39. 968
  40. 6648

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