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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 683 · 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. 1.183 × 5 =
  2. 2.203 × 4 =
  3. 3.932 × 4 =
  4. 4.446 × 4 =
  5. 5.169 × 8 =
  6. 6.389 × 4 =
  7. 7.145 × 5 =
  8. 8.141 × 3 =
  9. 9.424 × 6 =
  10. 10.364 × 9 =
  11. 11.719 × 8 =
  12. 12.455 × 7 =
  13. 13.315 × 4 =
  14. 14.347 × 3 =
  15. 15.881 × 3 =
  16. 16.927 × 6 =
  17. 17.535 × 5 =
  18. 18.576 × 7 =
  19. 19.211 × 7 =
  20. 20.256 × 4 =
  21. 21.677 × 6 =
  22. 22.618 × 9 =
  23. 23.917 × 4 =
  24. 24.455 × 5 =
  25. 25.175 × 4 =
  26. 26.514 × 7 =
  27. 27.472 × 4 =
  28. 28.279 × 8 =
  29. 29.339 × 3 =
  30. 30.285 × 6 =
  31. 31.715 × 3 =
  32. 32.401 × 9 =
  33. 33.201 × 3 =
  34. 34.774 × 4 =
  35. 35.377 × 5 =
  36. 36.243 × 5 =
  37. 37.298 × 6 =
  38. 38.463 × 6 =
  39. 39.417 × 8 =
  40. 40.683 × 6 =

Answer key

  1. 915
  2. 812
  3. 3728
  4. 1784
  5. 1352
  6. 1556
  7. 725
  8. 423
  9. 2544
  10. 3276
  11. 5752
  12. 3185
  13. 1260
  14. 1041
  15. 2643
  16. 5562
  17. 2675
  18. 4032
  19. 1477
  20. 1024
  21. 4062
  22. 5562
  23. 3668
  24. 2275
  25. 700
  26. 3598
  27. 1888
  28. 2232
  29. 1017
  30. 1710
  31. 2145
  32. 3609
  33. 603
  34. 3096
  35. 1885
  36. 1215
  37. 1788
  38. 2778
  39. 3336
  40. 4098

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