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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 412 · 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. 1.941 × 9 =
  2. 2.476 × 9 =
  3. 3.601 × 9 =
  4. 4.191 × 5 =
  5. 5.916 × 7 =
  6. 6.536 × 9 =
  7. 7.244 × 4 =
  8. 8.265 × 5 =
  9. 9.365 × 7 =
  10. 10.242 × 9 =
  11. 11.965 × 9 =
  12. 12.711 × 7 =
  13. 13.263 × 8 =
  14. 14.897 × 8 =
  15. 15.372 × 9 =
  16. 16.842 × 5 =
  17. 17.927 × 9 =
  18. 18.831 × 3 =
  19. 19.153 × 6 =
  20. 20.416 × 8 =
  21. 21.562 × 9 =
  22. 22.652 × 5 =
  23. 23.221 × 9 =
  24. 24.866 × 5 =
  25. 25.352 × 6 =
  26. 26.496 × 5 =
  27. 27.251 × 7 =
  28. 28.725 × 5 =
  29. 29.458 × 6 =
  30. 30.596 × 4 =
  31. 31.686 × 3 =
  32. 32.324 × 5 =
  33. 33.177 × 4 =
  34. 34.307 × 7 =
  35. 35.574 × 7 =
  36. 36.741 × 8 =
  37. 37.937 × 8 =
  38. 38.475 × 9 =
  39. 39.741 × 5 =
  40. 40.855 × 3 =

Answer key

  1. 8469
  2. 4284
  3. 5409
  4. 955
  5. 6412
  6. 4824
  7. 976
  8. 1325
  9. 2555
  10. 2178
  11. 8685
  12. 4977
  13. 2104
  14. 7176
  15. 3348
  16. 4210
  17. 8343
  18. 2493
  19. 918
  20. 3328
  21. 5058
  22. 3260
  23. 1989
  24. 4330
  25. 2112
  26. 2480
  27. 1757
  28. 3625
  29. 2748
  30. 2384
  31. 2058
  32. 1620
  33. 708
  34. 2149
  35. 4018
  36. 5928
  37. 7496
  38. 4275
  39. 3705
  40. 2565

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