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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 274 · 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. 1.701 × 5 =
  2. 2.223 × 6 =
  3. 3.213 × 3 =
  4. 4.457 × 4 =
  5. 5.575 × 4 =
  6. 6.297 × 7 =
  7. 7.709 × 3 =
  8. 8.151 × 3 =
  9. 9.451 × 8 =
  10. 10.942 × 8 =
  11. 11.956 × 7 =
  12. 12.898 × 3 =
  13. 13.816 × 6 =
  14. 14.914 × 6 =
  15. 15.699 × 9 =
  16. 16.843 × 8 =
  17. 17.645 × 8 =
  18. 18.485 × 6 =
  19. 19.267 × 4 =
  20. 20.163 × 4 =
  21. 21.556 × 6 =
  22. 22.705 × 9 =
  23. 23.891 × 7 =
  24. 24.769 × 5 =
  25. 25.878 × 6 =
  26. 26.947 × 4 =
  27. 27.725 × 8 =
  28. 28.131 × 7 =
  29. 29.887 × 9 =
  30. 30.383 × 6 =
  31. 31.139 × 3 =
  32. 32.598 × 5 =
  33. 33.554 × 9 =
  34. 34.901 × 9 =
  35. 35.317 × 4 =
  36. 36.326 × 4 =
  37. 37.646 × 4 =
  38. 38.533 × 7 =
  39. 39.157 × 5 =
  40. 40.961 × 3 =

Answer key

  1. 3505
  2. 1338
  3. 639
  4. 1828
  5. 2300
  6. 2079
  7. 2127
  8. 453
  9. 3608
  10. 7536
  11. 6692
  12. 2694
  13. 4896
  14. 5484
  15. 6291
  16. 6744
  17. 5160
  18. 2910
  19. 1068
  20. 652
  21. 3336
  22. 6345
  23. 6237
  24. 3845
  25. 5268
  26. 3788
  27. 5800
  28. 917
  29. 7983
  30. 2298
  31. 417
  32. 2990
  33. 4986
  34. 8109
  35. 1268
  36. 1304
  37. 2584
  38. 3731
  39. 785
  40. 2883

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