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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 241 · 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. 1.795 × 6 =
  2. 2.739 × 9 =
  3. 3.131 × 3 =
  4. 4.832 × 3 =
  5. 5.774 × 5 =
  6. 6.293 × 7 =
  7. 7.808 × 6 =
  8. 8.793 × 5 =
  9. 9.686 × 8 =
  10. 10.921 × 3 =
  11. 11.551 × 4 =
  12. 12.155 × 4 =
  13. 13.123 × 7 =
  14. 14.351 × 8 =
  15. 15.171 × 9 =
  16. 16.331 × 7 =
  17. 17.739 × 6 =
  18. 18.231 × 9 =
  19. 19.415 × 4 =
  20. 20.472 × 4 =
  21. 21.788 × 5 =
  22. 22.918 × 3 =
  23. 23.187 × 6 =
  24. 24.228 × 4 =
  25. 25.525 × 9 =
  26. 26.468 × 4 =
  27. 27.166 × 8 =
  28. 28.891 × 9 =
  29. 29.157 × 3 =
  30. 30.725 × 5 =
  31. 31.842 × 8 =
  32. 32.569 × 3 =
  33. 33.126 × 5 =
  34. 34.474 × 5 =
  35. 35.711 × 5 =
  36. 36.191 × 3 =
  37. 37.586 × 8 =
  38. 38.117 × 6 =
  39. 39.253 × 4 =
  40. 40.435 × 4 =

Answer key

  1. 4770
  2. 6651
  3. 393
  4. 2496
  5. 3870
  6. 2051
  7. 4848
  8. 3965
  9. 5488
  10. 2763
  11. 2204
  12. 620
  13. 861
  14. 2808
  15. 1539
  16. 2317
  17. 4434
  18. 2079
  19. 1660
  20. 1888
  21. 3940
  22. 2754
  23. 1122
  24. 912
  25. 4725
  26. 1872
  27. 1328
  28. 8019
  29. 471
  30. 3625
  31. 6736
  32. 1707
  33. 630
  34. 2370
  35. 3555
  36. 573
  37. 4688
  38. 702
  39. 1012
  40. 1740

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