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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 25 · 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 × 9 =
  2. 2.974 × 4 =
  3. 3.594 × 7 =
  4. 4.602 × 3 =
  5. 5.631 × 6 =
  6. 6.961 × 5 =
  7. 7.685 × 9 =
  8. 8.636 × 3 =
  9. 9.881 × 4 =
  10. 10.202 × 4 =
  11. 11.339 × 3 =
  12. 12.476 × 9 =
  13. 13.348 × 9 =
  14. 14.438 × 9 =
  15. 15.745 × 6 =
  16. 16.847 × 8 =
  17. 17.815 × 9 =
  18. 18.316 × 9 =
  19. 19.705 × 6 =
  20. 20.846 × 4 =
  21. 21.863 × 7 =
  22. 22.486 × 9 =
  23. 23.568 × 4 =
  24. 24.652 × 7 =
  25. 25.952 × 3 =
  26. 26.653 × 4 =
  27. 27.256 × 8 =
  28. 28.149 × 6 =
  29. 29.557 × 5 =
  30. 30.956 × 9 =
  31. 31.772 × 6 =
  32. 32.351 × 6 =
  33. 33.246 × 7 =
  34. 34.623 × 3 =
  35. 35.285 × 4 =
  36. 36.446 × 9 =
  37. 37.171 × 6 =
  38. 38.731 × 9 =
  39. 39.777 × 5 =
  40. 40.812 × 9 =

Answer key

  1. 2196
  2. 3896
  3. 4158
  4. 1806
  5. 3786
  6. 4805
  7. 6165
  8. 1908
  9. 3524
  10. 808
  11. 1017
  12. 4284
  13. 3132
  14. 3942
  15. 4470
  16. 6776
  17. 7335
  18. 2844
  19. 4230
  20. 3384
  21. 6041
  22. 4374
  23. 2272
  24. 4564
  25. 2856
  26. 2612
  27. 2048
  28. 894
  29. 2785
  30. 8604
  31. 4632
  32. 2106
  33. 1722
  34. 1869
  35. 1140
  36. 4014
  37. 1026
  38. 6579
  39. 3885
  40. 7308

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