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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 993 · 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. 1.233 × 8 =
  2. 2.563 × 4 =
  3. 3.942 × 4 =
  4. 4.375 × 5 =
  5. 5.485 × 6 =
  6. 6.131 × 8 =
  7. 7.151 × 5 =
  8. 8.355 × 3 =
  9. 9.562 × 7 =
  10. 10.639 × 3 =
  11. 11.159 × 3 =
  12. 12.648 × 5 =
  13. 13.222 × 5 =
  14. 14.167 × 4 =
  15. 15.703 × 5 =
  16. 16.605 × 3 =
  17. 17.224 × 8 =
  18. 18.697 × 5 =
  19. 19.884 × 5 =
  20. 20.631 × 3 =
  21. 21.129 × 6 =
  22. 22.551 × 3 =
  23. 23.448 × 8 =
  24. 24.495 × 9 =
  25. 25.551 × 7 =
  26. 26.641 × 3 =
  27. 27.883 × 7 =
  28. 28.569 × 5 =
  29. 29.539 × 6 =
  30. 30.941 × 6 =
  31. 31.236 × 5 =
  32. 32.527 × 4 =
  33. 33.409 × 3 =
  34. 34.165 × 4 =
  35. 35.484 × 7 =
  36. 36.537 × 5 =
  37. 37.189 × 9 =
  38. 38.894 × 8 =
  39. 39.839 × 8 =
  40. 40.203 × 8 =

Answer key

  1. 1864
  2. 2252
  3. 3768
  4. 1875
  5. 2910
  6. 1048
  7. 755
  8. 1065
  9. 3934
  10. 1917
  11. 477
  12. 3240
  13. 1110
  14. 668
  15. 3515
  16. 1815
  17. 1792
  18. 3485
  19. 4420
  20. 1893
  21. 774
  22. 1653
  23. 3584
  24. 4455
  25. 3857
  26. 1923
  27. 6181
  28. 2845
  29. 3234
  30. 5646
  31. 1180
  32. 2108
  33. 1227
  34. 660
  35. 3388
  36. 2685
  37. 1701
  38. 7152
  39. 6712
  40. 1624

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