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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 786 · 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. 1.351 × 9 =
  2. 2.225 × 7 =
  3. 3.658 × 4 =
  4. 4.336 × 3 =
  5. 5.699 × 7 =
  6. 6.603 × 3 =
  7. 7.195 × 8 =
  8. 8.218 × 5 =
  9. 9.608 × 9 =
  10. 10.655 × 6 =
  11. 11.733 × 8 =
  12. 12.555 × 4 =
  13. 13.312 × 4 =
  14. 14.726 × 4 =
  15. 15.962 × 5 =
  16. 16.707 × 5 =
  17. 17.874 × 9 =
  18. 18.117 × 4 =
  19. 19.905 × 4 =
  20. 20.448 × 3 =
  21. 21.741 × 4 =
  22. 22.357 × 4 =
  23. 23.514 × 4 =
  24. 24.467 × 6 =
  25. 25.977 × 5 =
  26. 26.193 × 9 =
  27. 27.415 × 6 =
  28. 28.945 × 3 =
  29. 29.255 × 8 =
  30. 30.332 × 4 =
  31. 31.357 × 7 =
  32. 32.163 × 6 =
  33. 33.292 × 3 =
  34. 34.259 × 3 =
  35. 35.912 × 5 =
  36. 36.985 × 3 =
  37. 37.874 × 4 =
  38. 38.918 × 3 =
  39. 39.394 × 4 =
  40. 40.714 × 7 =

Answer key

  1. 3159
  2. 1575
  3. 2632
  4. 1008
  5. 4893
  6. 1809
  7. 1560
  8. 1090
  9. 5472
  10. 3930
  11. 5864
  12. 2220
  13. 1248
  14. 2904
  15. 4810
  16. 3535
  17. 7866
  18. 468
  19. 3620
  20. 1344
  21. 2964
  22. 1428
  23. 2056
  24. 2802
  25. 4885
  26. 1737
  27. 2490
  28. 2835
  29. 2040
  30. 1328
  31. 2499
  32. 978
  33. 876
  34. 777
  35. 4560
  36. 2955
  37. 3496
  38. 2754
  39. 1576
  40. 4998

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