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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 18 · 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. 1.786 × 8 =
  2. 2.545 × 4 =
  3. 3.707 × 5 =
  4. 4.711 × 5 =
  5. 5.159 × 4 =
  6. 6.145 × 3 =
  7. 7.489 × 5 =
  8. 8.815 × 6 =
  9. 9.584 × 6 =
  10. 10.681 × 5 =
  11. 11.273 × 4 =
  12. 12.228 × 6 =
  13. 13.638 × 8 =
  14. 14.183 × 8 =
  15. 15.856 × 6 =
  16. 16.551 × 3 =
  17. 17.251 × 9 =
  18. 18.173 × 9 =
  19. 19.876 × 3 =
  20. 20.377 × 5 =
  21. 21.234 × 5 =
  22. 22.233 × 4 =
  23. 23.307 × 3 =
  24. 24.427 × 6 =
  25. 25.114 × 8 =
  26. 26.437 × 3 =
  27. 27.349 × 3 =
  28. 28.341 × 7 =
  29. 29.791 × 4 =
  30. 30.568 × 7 =
  31. 31.845 × 4 =
  32. 32.465 × 3 =
  33. 33.413 × 8 =
  34. 34.469 × 5 =
  35. 35.764 × 4 =
  36. 36.593 × 4 =
  37. 37.968 × 5 =
  38. 38.523 × 8 =
  39. 39.513 × 8 =
  40. 40.228 × 5 =

Answer key

  1. 6288
  2. 2180
  3. 3535
  4. 3555
  5. 636
  6. 435
  7. 2445
  8. 4890
  9. 3504
  10. 3405
  11. 1092
  12. 1368
  13. 5104
  14. 1464
  15. 5136
  16. 1653
  17. 2259
  18. 1557
  19. 2628
  20. 1885
  21. 1170
  22. 932
  23. 921
  24. 2562
  25. 912
  26. 1311
  27. 1047
  28. 2387
  29. 3164
  30. 3976
  31. 3380
  32. 1395
  33. 3304
  34. 2345
  35. 3056
  36. 2372
  37. 4840
  38. 4184
  39. 4104
  40. 1140

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