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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 421 · 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. 1.699 × 5 =
  2. 2.347 × 4 =
  3. 3.224 × 8 =
  4. 4.767 × 7 =
  5. 5.187 × 3 =
  6. 6.727 × 3 =
  7. 7.177 × 6 =
  8. 8.357 × 4 =
  9. 9.272 × 4 =
  10. 10.113 × 6 =
  11. 11.846 × 9 =
  12. 12.504 × 3 =
  13. 13.825 × 6 =
  14. 14.486 × 7 =
  15. 15.345 × 8 =
  16. 16.737 × 9 =
  17. 17.547 × 3 =
  18. 18.161 × 3 =
  19. 19.856 × 7 =
  20. 20.723 × 5 =
  21. 21.881 × 9 =
  22. 22.601 × 4 =
  23. 23.171 × 4 =
  24. 24.983 × 3 =
  25. 25.817 × 8 =
  26. 26.537 × 9 =
  27. 27.568 × 9 =
  28. 28.872 × 7 =
  29. 29.471 × 3 =
  30. 30.666 × 9 =
  31. 31.813 × 6 =
  32. 32.345 × 3 =
  33. 33.163 × 5 =
  34. 34.639 × 7 =
  35. 35.276 × 9 =
  36. 36.561 × 4 =
  37. 37.786 × 3 =
  38. 38.651 × 7 =
  39. 39.668 × 5 =
  40. 40.307 × 9 =

Answer key

  1. 3495
  2. 1388
  3. 1792
  4. 5369
  5. 561
  6. 2181
  7. 1062
  8. 1428
  9. 1088
  10. 678
  11. 7614
  12. 1512
  13. 4950
  14. 3402
  15. 2760
  16. 6633
  17. 1641
  18. 483
  19. 5992
  20. 3615
  21. 7929
  22. 2404
  23. 684
  24. 2949
  25. 6536
  26. 4833
  27. 5112
  28. 6104
  29. 1413
  30. 5994
  31. 4878
  32. 1035
  33. 815
  34. 4473
  35. 2484
  36. 2244
  37. 2358
  38. 4557
  39. 3340
  40. 2763

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