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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 113 · 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. 1.857 × 6 =
  2. 2.335 × 5 =
  3. 3.605 × 4 =
  4. 4.449 × 8 =
  5. 5.624 × 6 =
  6. 6.765 × 4 =
  7. 7.518 × 9 =
  8. 8.932 × 3 =
  9. 9.651 × 7 =
  10. 10.283 × 9 =
  11. 11.526 × 7 =
  12. 12.303 × 9 =
  13. 13.616 × 3 =
  14. 14.744 × 5 =
  15. 15.793 × 8 =
  16. 16.605 × 5 =
  17. 17.329 × 5 =
  18. 18.256 × 3 =
  19. 19.933 × 8 =
  20. 20.751 × 6 =
  21. 21.586 × 3 =
  22. 22.771 × 7 =
  23. 23.923 × 4 =
  24. 24.932 × 8 =
  25. 25.326 × 5 =
  26. 26.424 × 4 =
  27. 27.179 × 3 =
  28. 28.912 × 9 =
  29. 29.325 × 8 =
  30. 30.636 × 8 =
  31. 31.131 × 5 =
  32. 32.439 × 4 =
  33. 33.791 × 7 =
  34. 34.225 × 5 =
  35. 35.333 × 7 =
  36. 36.383 × 5 =
  37. 37.588 × 5 =
  38. 38.534 × 9 =
  39. 39.719 × 4 =
  40. 40.151 × 3 =

Answer key

  1. 5142
  2. 1675
  3. 2420
  4. 3592
  5. 3744
  6. 3060
  7. 4662
  8. 2796
  9. 4557
  10. 2547
  11. 3682
  12. 2727
  13. 1848
  14. 3720
  15. 6344
  16. 3025
  17. 1645
  18. 768
  19. 7464
  20. 4506
  21. 1758
  22. 5397
  23. 3692
  24. 7456
  25. 1630
  26. 1696
  27. 537
  28. 8208
  29. 2600
  30. 5088
  31. 655
  32. 1756
  33. 5537
  34. 1125
  35. 2331
  36. 1915
  37. 2940
  38. 4806
  39. 2876
  40. 453

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