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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 689 · 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. 1.168 × 8 =
  2. 2.652 × 4 =
  3. 3.827 × 7 =
  4. 4.181 × 9 =
  5. 5.981 × 5 =
  6. 6.268 × 3 =
  7. 7.971 × 9 =
  8. 8.398 × 8 =
  9. 9.695 × 6 =
  10. 10.781 × 7 =
  11. 11.581 × 5 =
  12. 12.877 × 9 =
  13. 13.795 × 6 =
  14. 14.462 × 9 =
  15. 15.469 × 3 =
  16. 16.334 × 3 =
  17. 17.513 × 3 =
  18. 18.353 × 7 =
  19. 19.205 × 6 =
  20. 20.655 × 3 =
  21. 21.851 × 4 =
  22. 22.135 × 9 =
  23. 23.146 × 6 =
  24. 24.359 × 9 =
  25. 25.253 × 5 =
  26. 26.706 × 7 =
  27. 27.389 × 7 =
  28. 28.877 × 7 =
  29. 29.264 × 7 =
  30. 30.951 × 8 =
  31. 31.201 × 3 =
  32. 32.198 × 3 =
  33. 33.366 × 3 =
  34. 34.236 × 4 =
  35. 35.328 × 5 =
  36. 36.469 × 9 =
  37. 37.674 × 6 =
  38. 38.152 × 3 =
  39. 39.563 × 5 =
  40. 40.713 × 4 =

Answer key

  1. 1344
  2. 2608
  3. 5789
  4. 1629
  5. 4905
  6. 804
  7. 8739
  8. 3184
  9. 4170
  10. 5467
  11. 2905
  12. 7893
  13. 4770
  14. 4158
  15. 1407
  16. 1002
  17. 1539
  18. 2471
  19. 1230
  20. 1965
  21. 3404
  22. 1215
  23. 876
  24. 3231
  25. 1265
  26. 4942
  27. 2723
  28. 6139
  29. 1848
  30. 7608
  31. 603
  32. 594
  33. 1098
  34. 944
  35. 1640
  36. 4221
  37. 4044
  38. 456
  39. 2815
  40. 2852

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