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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 864 · 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. 1.884 × 5 =
  2. 2.306 × 3 =
  3. 3.787 × 3 =
  4. 4.896 × 3 =
  5. 5.511 × 4 =
  6. 6.758 × 5 =
  7. 7.824 × 6 =
  8. 8.319 × 6 =
  9. 9.351 × 6 =
  10. 10.205 × 4 =
  11. 11.701 × 5 =
  12. 12.391 × 5 =
  13. 13.931 × 9 =
  14. 14.361 × 7 =
  15. 15.216 × 9 =
  16. 16.493 × 8 =
  17. 17.785 × 8 =
  18. 18.323 × 5 =
  19. 19.524 × 5 =
  20. 20.249 × 8 =
  21. 21.474 × 3 =
  22. 22.361 × 8 =
  23. 23.311 × 7 =
  24. 24.604 × 9 =
  25. 25.224 × 9 =
  26. 26.421 × 3 =
  27. 27.437 × 5 =
  28. 28.733 × 3 =
  29. 29.184 × 5 =
  30. 30.701 × 7 =
  31. 31.372 × 7 =
  32. 32.115 × 5 =
  33. 33.846 × 9 =
  34. 34.124 × 9 =
  35. 35.843 × 5 =
  36. 36.859 × 6 =
  37. 37.879 × 7 =
  38. 38.439 × 8 =
  39. 39.716 × 7 =
  40. 40.163 × 5 =

Answer key

  1. 4420
  2. 918
  3. 2361
  4. 2688
  5. 2044
  6. 3790
  7. 4944
  8. 1914
  9. 2106
  10. 820
  11. 3505
  12. 1955
  13. 8379
  14. 2527
  15. 1944
  16. 3944
  17. 6280
  18. 1615
  19. 2620
  20. 1992
  21. 1422
  22. 2888
  23. 2177
  24. 5436
  25. 2016
  26. 1263
  27. 2185
  28. 2199
  29. 920
  30. 4907
  31. 2604
  32. 575
  33. 7614
  34. 1116
  35. 4215
  36. 5154
  37. 6153
  38. 3512
  39. 5012
  40. 815

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