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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 175 · 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. 1.834 × 6 =
  2. 2.197 × 3 =
  3. 3.821 × 4 =
  4. 4.475 × 5 =
  5. 5.278 × 4 =
  6. 6.584 × 5 =
  7. 7.287 × 7 =
  8. 8.413 × 5 =
  9. 9.177 × 7 =
  10. 10.293 × 7 =
  11. 11.268 × 9 =
  12. 12.378 × 8 =
  13. 13.731 × 5 =
  14. 14.122 × 8 =
  15. 15.118 × 8 =
  16. 16.631 × 5 =
  17. 17.874 × 7 =
  18. 18.333 × 5 =
  19. 19.541 × 5 =
  20. 20.299 × 9 =
  21. 21.471 × 9 =
  22. 22.466 × 3 =
  23. 23.166 × 8 =
  24. 24.677 × 3 =
  25. 25.691 × 8 =
  26. 26.601 × 3 =
  27. 27.411 × 7 =
  28. 28.787 × 6 =
  29. 29.317 × 3 =
  30. 30.702 × 7 =
  31. 31.705 × 9 =
  32. 32.793 × 9 =
  33. 33.864 × 8 =
  34. 34.345 × 6 =
  35. 35.348 × 8 =
  36. 36.309 × 8 =
  37. 37.123 × 6 =
  38. 38.679 × 5 =
  39. 39.911 × 9 =
  40. 40.964 × 5 =

Answer key

  1. 5004
  2. 591
  3. 3284
  4. 2375
  5. 1112
  6. 2920
  7. 2009
  8. 2065
  9. 1239
  10. 2051
  11. 2412
  12. 3024
  13. 3655
  14. 976
  15. 944
  16. 3155
  17. 6118
  18. 1665
  19. 2705
  20. 2691
  21. 4239
  22. 1398
  23. 1328
  24. 2031
  25. 5528
  26. 1803
  27. 2877
  28. 4722
  29. 951
  30. 4914
  31. 6345
  32. 7137
  33. 6912
  34. 2070
  35. 2784
  36. 2472
  37. 738
  38. 3395
  39. 8199
  40. 4820

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