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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 301 · 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. 1.431 × 9 =
  2. 2.915 × 3 =
  3. 3.239 × 5 =
  4. 4.326 × 8 =
  5. 5.735 × 3 =
  6. 6.505 × 3 =
  7. 7.981 × 8 =
  8. 8.277 × 8 =
  9. 9.636 × 9 =
  10. 10.554 × 8 =
  11. 11.646 × 4 =
  12. 12.652 × 4 =
  13. 13.236 × 3 =
  14. 14.291 × 4 =
  15. 15.358 × 9 =
  16. 16.492 × 9 =
  17. 17.179 × 3 =
  18. 18.715 × 5 =
  19. 19.423 × 4 =
  20. 20.188 × 4 =
  21. 21.179 × 8 =
  22. 22.321 × 5 =
  23. 23.835 × 6 =
  24. 24.577 × 4 =
  25. 25.777 × 7 =
  26. 26.987 × 7 =
  27. 27.739 × 3 =
  28. 28.112 × 4 =
  29. 29.821 × 9 =
  30. 30.265 × 4 =
  31. 31.737 × 9 =
  32. 32.226 × 6 =
  33. 33.846 × 7 =
  34. 34.417 × 8 =
  35. 35.555 × 7 =
  36. 36.127 × 7 =
  37. 37.142 × 6 =
  38. 38.212 × 5 =
  39. 39.946 × 5 =
  40. 40.206 × 8 =

Answer key

  1. 3879
  2. 2745
  3. 1195
  4. 2608
  5. 2205
  6. 1515
  7. 7848
  8. 2216
  9. 5724
  10. 4432
  11. 2584
  12. 2608
  13. 708
  14. 1164
  15. 3222
  16. 4428
  17. 537
  18. 3575
  19. 1692
  20. 752
  21. 1432
  22. 1605
  23. 5010
  24. 2308
  25. 5439
  26. 6909
  27. 2217
  28. 448
  29. 7389
  30. 1060
  31. 6633
  32. 1356
  33. 5922
  34. 3336
  35. 3885
  36. 889
  37. 852
  38. 1060
  39. 4730
  40. 1648

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