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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 865 · 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. 1.329 × 9 =
  2. 2.821 × 8 =
  3. 3.149 × 6 =
  4. 4.447 × 7 =
  5. 5.644 × 3 =
  6. 6.549 × 9 =
  7. 7.147 × 7 =
  8. 8.711 × 5 =
  9. 9.454 × 6 =
  10. 10.935 × 9 =
  11. 11.584 × 4 =
  12. 12.906 × 5 =
  13. 13.118 × 3 =
  14. 14.941 × 3 =
  15. 15.652 × 6 =
  16. 16.795 × 6 =
  17. 17.886 × 9 =
  18. 18.715 × 5 =
  19. 19.802 × 4 =
  20. 20.696 × 4 =
  21. 21.201 × 4 =
  22. 22.561 × 4 =
  23. 23.145 × 9 =
  24. 24.445 × 5 =
  25. 25.275 × 6 =
  26. 26.944 × 9 =
  27. 27.441 × 9 =
  28. 28.184 × 3 =
  29. 29.921 × 6 =
  30. 30.721 × 7 =
  31. 31.661 × 6 =
  32. 32.865 × 5 =
  33. 33.913 × 6 =
  34. 34.384 × 6 =
  35. 35.509 × 3 =
  36. 36.744 × 3 =
  37. 37.387 × 9 =
  38. 38.134 × 5 =
  39. 39.169 × 5 =
  40. 40.151 × 4 =

Answer key

  1. 2961
  2. 6568
  3. 894
  4. 3129
  5. 1932
  6. 4941
  7. 1029
  8. 3555
  9. 2724
  10. 8415
  11. 2336
  12. 4530
  13. 354
  14. 2823
  15. 3912
  16. 4770
  17. 7974
  18. 3575
  19. 3208
  20. 2784
  21. 804
  22. 2244
  23. 1305
  24. 2225
  25. 1650
  26. 8496
  27. 3969
  28. 552
  29. 5526
  30. 5047
  31. 3966
  32. 4325
  33. 5478
  34. 2304
  35. 1527
  36. 2232
  37. 3483
  38. 670
  39. 845
  40. 604

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