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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 525 · 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. 1.912 × 7 =
  2. 2.519 × 6 =
  3. 3.451 × 3 =
  4. 4.174 × 7 =
  5. 5.535 × 7 =
  6. 6.392 × 3 =
  7. 7.396 × 8 =
  8. 8.242 × 9 =
  9. 9.462 × 5 =
  10. 10.234 × 8 =
  11. 11.801 × 7 =
  12. 12.655 × 4 =
  13. 13.311 × 7 =
  14. 14.346 × 8 =
  15. 15.721 × 6 =
  16. 16.721 × 7 =
  17. 17.159 × 4 =
  18. 18.921 × 6 =
  19. 19.266 × 5 =
  20. 20.189 × 5 =
  21. 21.548 × 3 =
  22. 22.799 × 9 =
  23. 23.606 × 5 =
  24. 24.891 × 9 =
  25. 25.197 × 7 =
  26. 26.116 × 9 =
  27. 27.612 × 5 =
  28. 28.607 × 4 =
  29. 29.927 × 6 =
  30. 30.423 × 6 =
  31. 31.659 × 3 =
  32. 32.176 × 5 =
  33. 33.826 × 3 =
  34. 34.953 × 6 =
  35. 35.981 × 3 =
  36. 36.211 × 7 =
  37. 37.348 × 4 =
  38. 38.171 × 8 =
  39. 39.288 × 7 =
  40. 40.162 × 3 =

Answer key

  1. 6384
  2. 3114
  3. 1353
  4. 1218
  5. 3745
  6. 1176
  7. 3168
  8. 2178
  9. 2310
  10. 1872
  11. 5607
  12. 2620
  13. 2177
  14. 2768
  15. 4326
  16. 5047
  17. 636
  18. 5526
  19. 1330
  20. 945
  21. 1644
  22. 7191
  23. 3030
  24. 8019
  25. 1379
  26. 1044
  27. 3060
  28. 2428
  29. 5562
  30. 2538
  31. 1977
  32. 880
  33. 2478
  34. 5718
  35. 2943
  36. 1477
  37. 1392
  38. 1368
  39. 2016
  40. 486

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