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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 624 · 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. 1.495 × 5 =
  2. 2.214 × 3 =
  3. 3.906 × 8 =
  4. 4.309 × 9 =
  5. 5.987 × 3 =
  6. 6.185 × 4 =
  7. 7.188 × 6 =
  8. 8.112 × 5 =
  9. 9.931 × 8 =
  10. 10.286 × 3 =
  11. 11.733 × 9 =
  12. 12.271 × 6 =
  13. 13.739 × 9 =
  14. 14.587 × 9 =
  15. 15.578 × 7 =
  16. 16.931 × 4 =
  17. 17.696 × 7 =
  18. 18.732 × 6 =
  19. 19.491 × 6 =
  20. 20.355 × 6 =
  21. 21.527 × 3 =
  22. 22.154 × 3 =
  23. 23.601 × 4 =
  24. 24.593 × 4 =
  25. 25.395 × 3 =
  26. 26.867 × 5 =
  27. 27.727 × 5 =
  28. 28.329 × 5 =
  29. 29.454 × 4 =
  30. 30.167 × 8 =
  31. 31.835 × 9 =
  32. 32.898 × 9 =
  33. 33.737 × 4 =
  34. 34.721 × 7 =
  35. 35.871 × 8 =
  36. 36.451 × 5 =
  37. 37.384 × 5 =
  38. 38.891 × 9 =
  39. 39.791 × 5 =
  40. 40.738 × 7 =

Answer key

  1. 2475
  2. 642
  3. 7248
  4. 2781
  5. 2961
  6. 740
  7. 1128
  8. 560
  9. 7448
  10. 858
  11. 6597
  12. 1626
  13. 6651
  14. 5283
  15. 4046
  16. 3724
  17. 4872
  18. 4392
  19. 2946
  20. 2130
  21. 1581
  22. 462
  23. 2404
  24. 2372
  25. 1185
  26. 4335
  27. 3635
  28. 1645
  29. 1816
  30. 1336
  31. 7515
  32. 8082
  33. 2948
  34. 5047
  35. 6968
  36. 2255
  37. 1920
  38. 8019
  39. 3955
  40. 5166

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