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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 434 · 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. 1.546 × 8 =
  2. 2.919 × 7 =
  3. 3.583 × 6 =
  4. 4.459 × 6 =
  5. 5.304 × 4 =
  6. 6.211 × 6 =
  7. 7.241 × 9 =
  8. 8.359 × 7 =
  9. 9.725 × 5 =
  10. 10.568 × 9 =
  11. 11.621 × 3 =
  12. 12.165 × 5 =
  13. 13.555 × 3 =
  14. 14.702 × 6 =
  15. 15.716 × 9 =
  16. 16.224 × 5 =
  17. 17.688 × 5 =
  18. 18.276 × 7 =
  19. 19.446 × 3 =
  20. 20.625 × 4 =
  21. 21.167 × 6 =
  22. 22.187 × 8 =
  23. 23.161 × 5 =
  24. 24.936 × 3 =
  25. 25.227 × 6 =
  26. 26.325 × 3 =
  27. 27.522 × 4 =
  28. 28.578 × 6 =
  29. 29.758 × 5 =
  30. 30.752 × 5 =
  31. 31.559 × 7 =
  32. 32.938 × 5 =
  33. 33.341 × 3 =
  34. 34.495 × 8 =
  35. 35.824 × 3 =
  36. 36.173 × 3 =
  37. 37.941 × 9 =
  38. 38.369 × 5 =
  39. 39.951 × 4 =
  40. 40.562 × 9 =

Answer key

  1. 4368
  2. 6433
  3. 3498
  4. 2754
  5. 1216
  6. 1266
  7. 2169
  8. 2513
  9. 3625
  10. 5112
  11. 1863
  12. 825
  13. 1665
  14. 4212
  15. 6444
  16. 1120
  17. 3440
  18. 1932
  19. 1338
  20. 2500
  21. 1002
  22. 1496
  23. 805
  24. 2808
  25. 1362
  26. 975
  27. 2088
  28. 3468
  29. 3790
  30. 3760
  31. 3913
  32. 4690
  33. 1023
  34. 3960
  35. 2472
  36. 519
  37. 8469
  38. 1845
  39. 3804
  40. 5058

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