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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 420 · 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. 1.816 × 3 =
  2. 2.667 × 9 =
  3. 3.791 × 3 =
  4. 4.986 × 6 =
  5. 5.122 × 8 =
  6. 6.425 × 6 =
  7. 7.544 × 6 =
  8. 8.873 × 9 =
  9. 9.162 × 9 =
  10. 10.371 × 6 =
  11. 11.773 × 9 =
  12. 12.389 × 9 =
  13. 13.211 × 5 =
  14. 14.613 × 3 =
  15. 15.764 × 5 =
  16. 16.945 × 4 =
  17. 17.173 × 9 =
  18. 18.564 × 3 =
  19. 19.176 × 3 =
  20. 20.987 × 4 =
  21. 21.416 × 5 =
  22. 22.154 × 4 =
  23. 23.373 × 7 =
  24. 24.882 × 3 =
  25. 25.213 × 6 =
  26. 26.285 × 7 =
  27. 27.947 × 8 =
  28. 28.493 × 6 =
  29. 29.304 × 6 =
  30. 30.737 × 8 =
  31. 31.802 × 9 =
  32. 32.566 × 9 =
  33. 33.706 × 3 =
  34. 34.879 × 3 =
  35. 35.502 × 7 =
  36. 36.816 × 5 =
  37. 37.141 × 8 =
  38. 38.545 × 6 =
  39. 39.455 × 4 =
  40. 40.328 × 3 =

Answer key

  1. 2448
  2. 6003
  3. 2373
  4. 5916
  5. 976
  6. 2550
  7. 3264
  8. 7857
  9. 1458
  10. 2226
  11. 6957
  12. 3501
  13. 1055
  14. 1839
  15. 3820
  16. 3780
  17. 1557
  18. 1692
  19. 528
  20. 3948
  21. 2080
  22. 616
  23. 2611
  24. 2646
  25. 1278
  26. 1995
  27. 7576
  28. 2958
  29. 1824
  30. 5896
  31. 7218
  32. 5094
  33. 2118
  34. 2637
  35. 3514
  36. 4080
  37. 1128
  38. 3270
  39. 1820
  40. 984

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