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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 119 · 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. 1.551 × 3 =
  2. 2.681 × 6 =
  3. 3.727 × 3 =
  4. 4.217 × 8 =
  5. 5.704 × 4 =
  6. 6.644 × 7 =
  7. 7.841 × 4 =
  8. 8.281 × 6 =
  9. 9.298 × 3 =
  10. 10.299 × 7 =
  11. 11.534 × 6 =
  12. 12.191 × 7 =
  13. 13.566 × 3 =
  14. 14.892 × 8 =
  15. 15.409 × 4 =
  16. 16.572 × 5 =
  17. 17.149 × 6 =
  18. 18.326 × 6 =
  19. 19.917 × 8 =
  20. 20.333 × 5 =
  21. 21.601 × 6 =
  22. 22.308 × 4 =
  23. 23.817 × 7 =
  24. 24.369 × 9 =
  25. 25.427 × 7 =
  26. 26.683 × 3 =
  27. 27.148 × 8 =
  28. 28.277 × 7 =
  29. 29.866 × 4 =
  30. 30.189 × 7 =
  31. 31.333 × 8 =
  32. 32.919 × 8 =
  33. 33.561 × 4 =
  34. 34.264 × 3 =
  35. 35.266 × 3 =
  36. 36.911 × 8 =
  37. 37.895 × 6 =
  38. 38.602 × 5 =
  39. 39.136 × 8 =
  40. 40.581 × 8 =

Answer key

  1. 1653
  2. 4086
  3. 2181
  4. 1736
  5. 2816
  6. 4508
  7. 3364
  8. 1686
  9. 894
  10. 2093
  11. 3204
  12. 1337
  13. 1698
  14. 7136
  15. 1636
  16. 2860
  17. 894
  18. 1956
  19. 7336
  20. 1665
  21. 3606
  22. 1232
  23. 5719
  24. 3321
  25. 2989
  26. 2049
  27. 1184
  28. 1939
  29. 3464
  30. 1323
  31. 2664
  32. 7352
  33. 2244
  34. 792
  35. 798
  36. 7288
  37. 5370
  38. 3010
  39. 1088
  40. 4648

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