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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 795 · 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. 1.343 × 5 =
  2. 2.895 × 7 =
  3. 3.544 × 3 =
  4. 4.203 × 7 =
  5. 5.449 × 9 =
  6. 6.468 × 3 =
  7. 7.871 × 6 =
  8. 8.271 × 6 =
  9. 9.333 × 8 =
  10. 10.257 × 5 =
  11. 11.283 × 7 =
  12. 12.121 × 6 =
  13. 13.389 × 7 =
  14. 14.792 × 6 =
  15. 15.512 × 7 =
  16. 16.289 × 9 =
  17. 17.586 × 6 =
  18. 18.334 × 8 =
  19. 19.151 × 9 =
  20. 20.791 × 5 =
  21. 21.258 × 9 =
  22. 22.344 × 3 =
  23. 23.972 × 4 =
  24. 24.421 × 7 =
  25. 25.326 × 9 =
  26. 26.244 × 5 =
  27. 27.864 × 5 =
  28. 28.147 × 5 =
  29. 29.163 × 6 =
  30. 30.266 × 6 =
  31. 31.178 × 6 =
  32. 32.765 × 9 =
  33. 33.398 × 5 =
  34. 34.251 × 9 =
  35. 35.546 × 8 =
  36. 36.946 × 9 =
  37. 37.471 × 9 =
  38. 38.659 × 6 =
  39. 39.631 × 5 =
  40. 40.771 × 5 =

Answer key

  1. 1715
  2. 6265
  3. 1632
  4. 1421
  5. 4041
  6. 1404
  7. 5226
  8. 1626
  9. 2664
  10. 1285
  11. 1981
  12. 726
  13. 2723
  14. 4752
  15. 3584
  16. 2601
  17. 3516
  18. 2672
  19. 1359
  20. 3955
  21. 2322
  22. 1032
  23. 3888
  24. 2947
  25. 2934
  26. 1220
  27. 4320
  28. 735
  29. 978
  30. 1596
  31. 1068
  32. 6885
  33. 1990
  34. 2259
  35. 4368
  36. 8514
  37. 4239
  38. 3954
  39. 3155
  40. 3855

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