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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 69 · 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. 1.244 × 4 =
  2. 2.852 × 8 =
  3. 3.385 × 9 =
  4. 4.407 × 3 =
  5. 5.388 × 9 =
  6. 6.556 × 8 =
  7. 7.498 × 6 =
  8. 8.867 × 8 =
  9. 9.178 × 8 =
  10. 10.594 × 4 =
  11. 11.114 × 9 =
  12. 12.775 × 9 =
  13. 13.531 × 5 =
  14. 14.738 × 4 =
  15. 15.586 × 4 =
  16. 16.561 × 7 =
  17. 17.423 × 3 =
  18. 18.964 × 3 =
  19. 19.757 × 6 =
  20. 20.781 × 4 =
  21. 21.237 × 3 =
  22. 22.527 × 4 =
  23. 23.751 × 3 =
  24. 24.191 × 4 =
  25. 25.453 × 5 =
  26. 26.166 × 3 =
  27. 27.315 × 6 =
  28. 28.964 × 4 =
  29. 29.859 × 8 =
  30. 30.808 × 5 =
  31. 31.183 × 5 =
  32. 32.363 × 6 =
  33. 33.387 × 6 =
  34. 34.891 × 8 =
  35. 35.595 × 5 =
  36. 36.151 × 5 =
  37. 37.943 × 6 =
  38. 38.394 × 7 =
  39. 39.749 × 8 =
  40. 40.587 × 6 =

Answer key

  1. 976
  2. 6816
  3. 3465
  4. 1221
  5. 3492
  6. 4448
  7. 2988
  8. 6936
  9. 1424
  10. 2376
  11. 1026
  12. 6975
  13. 2655
  14. 2952
  15. 2344
  16. 3927
  17. 1269
  18. 2892
  19. 4542
  20. 3124
  21. 711
  22. 2108
  23. 2253
  24. 764
  25. 2265
  26. 498
  27. 1890
  28. 3856
  29. 6872
  30. 4040
  31. 915
  32. 2178
  33. 2322
  34. 7128
  35. 2975
  36. 755
  37. 5658
  38. 2758
  39. 5992
  40. 3522

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