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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 852 · 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. 1.828 × 5 =
  2. 2.368 × 4 =
  3. 3.447 × 8 =
  4. 4.311 × 3 =
  5. 5.191 × 5 =
  6. 6.751 × 8 =
  7. 7.731 × 5 =
  8. 8.654 × 6 =
  9. 9.348 × 5 =
  10. 10.642 × 3 =
  11. 11.454 × 3 =
  12. 12.358 × 8 =
  13. 13.216 × 4 =
  14. 14.897 × 6 =
  15. 15.612 × 6 =
  16. 16.154 × 3 =
  17. 17.149 × 3 =
  18. 18.166 × 3 =
  19. 19.291 × 9 =
  20. 20.823 × 4 =
  21. 21.701 × 3 =
  22. 22.261 × 4 =
  23. 23.293 × 4 =
  24. 24.371 × 3 =
  25. 25.811 × 7 =
  26. 26.171 × 8 =
  27. 27.723 × 5 =
  28. 28.674 × 6 =
  29. 29.703 × 3 =
  30. 30.922 × 7 =
  31. 31.819 × 8 =
  32. 32.168 × 9 =
  33. 33.501 × 3 =
  34. 34.848 × 9 =
  35. 35.868 × 4 =
  36. 36.123 × 8 =
  37. 37.713 × 8 =
  38. 38.184 × 6 =
  39. 39.856 × 6 =
  40. 40.704 × 9 =

Answer key

  1. 4140
  2. 1472
  3. 3576
  4. 933
  5. 955
  6. 6008
  7. 3655
  8. 3924
  9. 1740
  10. 1926
  11. 1362
  12. 2864
  13. 864
  14. 5382
  15. 3672
  16. 462
  17. 447
  18. 498
  19. 2619
  20. 3292
  21. 2103
  22. 1044
  23. 1172
  24. 1113
  25. 5677
  26. 1368
  27. 3615
  28. 4044
  29. 2109
  30. 6454
  31. 6552
  32. 1512
  33. 1503
  34. 7632
  35. 3472
  36. 984
  37. 5704
  38. 1104
  39. 5136
  40. 6336

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