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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 869 · 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. 1.784 × 3 =
  2. 2.948 × 9 =
  3. 3.555 × 3 =
  4. 4.968 × 6 =
  5. 5.247 × 7 =
  6. 6.195 × 3 =
  7. 7.283 × 9 =
  8. 8.501 × 3 =
  9. 9.539 × 7 =
  10. 10.194 × 9 =
  11. 11.527 × 3 =
  12. 12.696 × 6 =
  13. 13.662 × 4 =
  14. 14.419 × 3 =
  15. 15.239 × 4 =
  16. 16.891 × 9 =
  17. 17.418 × 4 =
  18. 18.919 × 7 =
  19. 19.183 × 3 =
  20. 20.875 × 5 =
  21. 21.391 × 5 =
  22. 22.405 × 8 =
  23. 23.408 × 9 =
  24. 24.673 × 8 =
  25. 25.878 × 6 =
  26. 26.812 × 3 =
  27. 27.583 × 6 =
  28. 28.923 × 8 =
  29. 29.131 × 9 =
  30. 30.178 × 7 =
  31. 31.226 × 5 =
  32. 32.856 × 4 =
  33. 33.685 × 3 =
  34. 34.567 × 9 =
  35. 35.431 × 9 =
  36. 36.312 × 3 =
  37. 37.337 × 3 =
  38. 38.911 × 6 =
  39. 39.649 × 8 =
  40. 40.378 × 4 =

Answer key

  1. 2352
  2. 8532
  3. 1665
  4. 5808
  5. 1729
  6. 585
  7. 2547
  8. 1503
  9. 3773
  10. 1746
  11. 1581
  12. 4176
  13. 2648
  14. 1257
  15. 956
  16. 8019
  17. 1672
  18. 6433
  19. 549
  20. 4375
  21. 1955
  22. 3240
  23. 3672
  24. 5384
  25. 5268
  26. 2436
  27. 3498
  28. 7384
  29. 1179
  30. 1246
  31. 1130
  32. 3424
  33. 2055
  34. 5103
  35. 3879
  36. 936
  37. 1011
  38. 5466
  39. 5192
  40. 1512

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