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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 901 · 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. 1.729 × 8 =
  2. 2.371 × 5 =
  3. 3.985 × 4 =
  4. 4.282 × 3 =
  5. 5.261 × 3 =
  6. 6.482 × 4 =
  7. 7.671 × 3 =
  8. 8.798 × 8 =
  9. 9.842 × 7 =
  10. 10.597 × 6 =
  11. 11.341 × 9 =
  12. 12.761 × 8 =
  13. 13.126 × 7 =
  14. 14.309 × 6 =
  15. 15.901 × 9 =
  16. 16.722 × 9 =
  17. 17.627 × 4 =
  18. 18.503 × 3 =
  19. 19.196 × 9 =
  20. 20.646 × 8 =
  21. 21.344 × 7 =
  22. 22.761 × 7 =
  23. 23.379 × 3 =
  24. 24.577 × 6 =
  25. 25.968 × 3 =
  26. 26.776 × 3 =
  27. 27.123 × 5 =
  28. 28.195 × 3 =
  29. 29.938 × 8 =
  30. 30.471 × 7 =
  31. 31.675 × 8 =
  32. 32.832 × 8 =
  33. 33.647 × 4 =
  34. 34.626 × 4 =
  35. 35.394 × 8 =
  36. 36.754 × 7 =
  37. 37.434 × 8 =
  38. 38.346 × 8 =
  39. 39.139 × 3 =
  40. 40.678 × 4 =

Answer key

  1. 5832
  2. 1855
  3. 3940
  4. 846
  5. 783
  6. 1928
  7. 2013
  8. 6384
  9. 5894
  10. 3582
  11. 3069
  12. 6088
  13. 882
  14. 1854
  15. 8109
  16. 6498
  17. 2508
  18. 1509
  19. 1764
  20. 5168
  21. 2408
  22. 5327
  23. 1137
  24. 3462
  25. 2904
  26. 2328
  27. 615
  28. 585
  29. 7504
  30. 3297
  31. 5400
  32. 6656
  33. 2588
  34. 2504
  35. 3152
  36. 5278
  37. 3472
  38. 2768
  39. 417
  40. 2712

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