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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 709 · 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. 1.316 × 8 =
  2. 2.988 × 5 =
  3. 3.761 × 9 =
  4. 4.715 × 8 =
  5. 5.826 × 4 =
  6. 6.701 × 3 =
  7. 7.708 × 9 =
  8. 8.222 × 5 =
  9. 9.661 × 3 =
  10. 10.219 × 5 =
  11. 11.867 × 8 =
  12. 12.124 × 7 =
  13. 13.314 × 8 =
  14. 14.978 × 9 =
  15. 15.921 × 3 =
  16. 16.352 × 8 =
  17. 17.209 × 7 =
  18. 18.391 × 5 =
  19. 19.657 × 5 =
  20. 20.152 × 6 =
  21. 21.143 × 5 =
  22. 22.512 × 3 =
  23. 23.361 × 4 =
  24. 24.684 × 3 =
  25. 25.345 × 5 =
  26. 26.795 × 6 =
  27. 27.528 × 3 =
  28. 28.751 × 9 =
  29. 29.721 × 6 =
  30. 30.563 × 8 =
  31. 31.897 × 6 =
  32. 32.435 × 4 =
  33. 33.485 × 7 =
  34. 34.156 × 8 =
  35. 35.587 × 7 =
  36. 36.268 × 4 =
  37. 37.781 × 5 =
  38. 38.931 × 3 =
  39. 39.274 × 5 =
  40. 40.487 × 4 =

Answer key

  1. 2528
  2. 4940
  3. 6849
  4. 5720
  5. 3304
  6. 2103
  7. 6372
  8. 1110
  9. 1983
  10. 1095
  11. 6936
  12. 868
  13. 2512
  14. 8802
  15. 2763
  16. 2816
  17. 1463
  18. 1955
  19. 3285
  20. 912
  21. 715
  22. 1536
  23. 1444
  24. 2052
  25. 1725
  26. 4770
  27. 1584
  28. 6759
  29. 4326
  30. 4504
  31. 5382
  32. 1740
  33. 3395
  34. 1248
  35. 4109
  36. 1072
  37. 3905
  38. 2793
  39. 1370
  40. 1948

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