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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 200 · 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. 1.615 × 6 =
  2. 2.943 × 5 =
  3. 3.345 × 6 =
  4. 4.515 × 5 =
  5. 5.828 × 9 =
  6. 6.347 × 6 =
  7. 7.805 × 6 =
  8. 8.566 × 8 =
  9. 9.524 × 9 =
  10. 10.661 × 4 =
  11. 11.173 × 8 =
  12. 12.431 × 5 =
  13. 13.933 × 3 =
  14. 14.155 × 9 =
  15. 15.162 × 7 =
  16. 16.354 × 8 =
  17. 17.497 × 7 =
  18. 18.891 × 4 =
  19. 19.694 × 7 =
  20. 20.231 × 3 =
  21. 21.463 × 6 =
  22. 22.741 × 4 =
  23. 23.697 × 4 =
  24. 24.309 × 8 =
  25. 25.737 × 8 =
  26. 26.831 × 4 =
  27. 27.911 × 7 =
  28. 28.573 × 9 =
  29. 29.948 × 7 =
  30. 30.469 × 5 =
  31. 31.385 × 4 =
  32. 32.553 × 9 =
  33. 33.116 × 9 =
  34. 34.891 × 7 =
  35. 35.344 × 7 =
  36. 36.161 × 8 =
  37. 37.161 × 4 =
  38. 38.112 × 5 =
  39. 39.697 × 8 =
  40. 40.137 × 6 =

Answer key

  1. 3690
  2. 4715
  3. 2070
  4. 2575
  5. 7452
  6. 2082
  7. 4830
  8. 4528
  9. 4716
  10. 2644
  11. 1384
  12. 2155
  13. 2799
  14. 1395
  15. 1134
  16. 2832
  17. 3479
  18. 3564
  19. 4858
  20. 693
  21. 2778
  22. 2964
  23. 2788
  24. 2472
  25. 5896
  26. 3324
  27. 6377
  28. 5157
  29. 6636
  30. 2345
  31. 1540
  32. 4977
  33. 1044
  34. 6237
  35. 2408
  36. 1288
  37. 644
  38. 560
  39. 5576
  40. 822

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