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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 183 · 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. 1.911 × 3 =
  2. 2.666 × 3 =
  3. 3.781 × 4 =
  4. 4.783 × 5 =
  5. 5.647 × 3 =
  6. 6.698 × 7 =
  7. 7.198 × 3 =
  8. 8.894 × 9 =
  9. 9.871 × 7 =
  10. 10.832 × 9 =
  11. 11.176 × 8 =
  12. 12.793 × 9 =
  13. 13.366 × 6 =
  14. 14.316 × 5 =
  15. 15.368 × 3 =
  16. 16.987 × 8 =
  17. 17.357 × 3 =
  18. 18.566 × 9 =
  19. 19.297 × 9 =
  20. 20.944 × 9 =
  21. 21.151 × 8 =
  22. 22.821 × 4 =
  23. 23.836 × 7 =
  24. 24.212 × 4 =
  25. 25.703 × 6 =
  26. 26.974 × 6 =
  27. 27.793 × 4 =
  28. 28.762 × 4 =
  29. 29.212 × 6 =
  30. 30.194 × 7 =
  31. 31.974 × 4 =
  32. 32.603 × 5 =
  33. 33.139 × 6 =
  34. 34.884 × 6 =
  35. 35.483 × 4 =
  36. 36.127 × 4 =
  37. 37.596 × 9 =
  38. 38.211 × 3 =
  39. 39.871 × 3 =
  40. 40.391 × 9 =

Answer key

  1. 2733
  2. 1998
  3. 3124
  4. 3915
  5. 1941
  6. 4886
  7. 594
  8. 8046
  9. 6097
  10. 7488
  11. 1408
  12. 7137
  13. 2196
  14. 1580
  15. 1104
  16. 7896
  17. 1071
  18. 5094
  19. 2673
  20. 8496
  21. 1208
  22. 3284
  23. 5852
  24. 848
  25. 4218
  26. 5844
  27. 3172
  28. 3048
  29. 1272
  30. 1358
  31. 3896
  32. 3015
  33. 834
  34. 5304
  35. 1932
  36. 508
  37. 5364
  38. 633
  39. 2613
  40. 3519

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