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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 297 · 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. 1.425 × 3 =
  2. 2.241 × 4 =
  3. 3.522 × 5 =
  4. 4.336 × 8 =
  5. 5.661 × 6 =
  6. 6.334 × 9 =
  7. 7.391 × 9 =
  8. 8.824 × 4 =
  9. 9.129 × 9 =
  10. 10.795 × 7 =
  11. 11.884 × 8 =
  12. 12.896 × 5 =
  13. 13.447 × 6 =
  14. 14.652 × 5 =
  15. 15.469 × 8 =
  16. 16.381 × 3 =
  17. 17.397 × 9 =
  18. 18.217 × 4 =
  19. 19.986 × 8 =
  20. 20.211 × 7 =
  21. 21.526 × 3 =
  22. 22.654 × 4 =
  23. 23.163 × 3 =
  24. 24.228 × 3 =
  25. 25.293 × 3 =
  26. 26.898 × 4 =
  27. 27.504 × 8 =
  28. 28.187 × 3 =
  29. 29.935 × 5 =
  30. 30.468 × 7 =
  31. 31.766 × 3 =
  32. 32.345 × 3 =
  33. 33.241 × 7 =
  34. 34.537 × 5 =
  35. 35.191 × 4 =
  36. 36.702 × 4 =
  37. 37.277 × 4 =
  38. 38.856 × 8 =
  39. 39.558 × 5 =
  40. 40.395 × 5 =

Answer key

  1. 1275
  2. 964
  3. 2610
  4. 2688
  5. 3966
  6. 3006
  7. 3519
  8. 3296
  9. 1161
  10. 5565
  11. 7072
  12. 4480
  13. 2682
  14. 3260
  15. 3752
  16. 1143
  17. 3573
  18. 868
  19. 7888
  20. 1477
  21. 1578
  22. 2616
  23. 489
  24. 684
  25. 879
  26. 3592
  27. 4032
  28. 561
  29. 4675
  30. 3276
  31. 2298
  32. 1035
  33. 1687
  34. 2685
  35. 764
  36. 2808
  37. 1108
  38. 6848
  39. 2790
  40. 1975

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