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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 391 · 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. 1.122 × 7 =
  2. 2.754 × 7 =
  3. 3.656 × 7 =
  4. 4.566 × 7 =
  5. 5.449 × 6 =
  6. 6.187 × 6 =
  7. 7.376 × 3 =
  8. 8.411 × 4 =
  9. 9.388 × 8 =
  10. 10.406 × 5 =
  11. 11.968 × 9 =
  12. 12.625 × 9 =
  13. 13.211 × 6 =
  14. 14.199 × 4 =
  15. 15.531 × 4 =
  16. 16.358 × 9 =
  17. 17.574 × 4 =
  18. 18.173 × 4 =
  19. 19.161 × 7 =
  20. 20.697 × 3 =
  21. 21.948 × 9 =
  22. 22.161 × 6 =
  23. 23.969 × 4 =
  24. 24.767 × 6 =
  25. 25.851 × 9 =
  26. 26.596 × 8 =
  27. 27.915 × 4 =
  28. 28.316 × 6 =
  29. 29.674 × 8 =
  30. 30.835 × 3 =
  31. 31.914 × 4 =
  32. 32.804 × 3 =
  33. 33.428 × 6 =
  34. 34.165 × 5 =
  35. 35.878 × 4 =
  36. 36.863 × 7 =
  37. 37.301 × 7 =
  38. 38.451 × 8 =
  39. 39.586 × 7 =
  40. 40.178 × 3 =

Answer key

  1. 854
  2. 5278
  3. 4592
  4. 3962
  5. 2694
  6. 1122
  7. 1128
  8. 1644
  9. 3104
  10. 2030
  11. 8712
  12. 5625
  13. 1266
  14. 796
  15. 2124
  16. 3222
  17. 2296
  18. 692
  19. 1127
  20. 2091
  21. 8532
  22. 966
  23. 3876
  24. 4602
  25. 7659
  26. 4768
  27. 3660
  28. 1896
  29. 5392
  30. 2505
  31. 3656
  32. 2412
  33. 2568
  34. 825
  35. 3512
  36. 6041
  37. 2107
  38. 3608
  39. 4102
  40. 534

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