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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 551 · 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. 1.507 × 9 =
  2. 2.163 × 9 =
  3. 3.977 × 8 =
  4. 4.726 × 3 =
  5. 5.322 × 6 =
  6. 6.471 × 4 =
  7. 7.676 × 6 =
  8. 8.477 × 5 =
  9. 9.266 × 3 =
  10. 10.642 × 3 =
  11. 11.692 × 9 =
  12. 12.584 × 3 =
  13. 13.656 × 5 =
  14. 14.888 × 9 =
  15. 15.677 × 3 =
  16. 16.546 × 9 =
  17. 17.646 × 3 =
  18. 18.621 × 7 =
  19. 19.894 × 4 =
  20. 20.304 × 4 =
  21. 21.676 × 3 =
  22. 22.255 × 4 =
  23. 23.383 × 9 =
  24. 24.441 × 5 =
  25. 25.752 × 4 =
  26. 26.298 × 4 =
  27. 27.961 × 9 =
  28. 28.441 × 3 =
  29. 29.632 × 5 =
  30. 30.331 × 3 =
  31. 31.229 × 6 =
  32. 32.655 × 3 =
  33. 33.582 × 4 =
  34. 34.672 × 4 =
  35. 35.133 × 4 =
  36. 36.331 × 7 =
  37. 37.365 × 9 =
  38. 38.709 × 4 =
  39. 39.303 × 5 =
  40. 40.763 × 4 =

Answer key

  1. 4563
  2. 1467
  3. 7816
  4. 2178
  5. 1932
  6. 1884
  7. 4056
  8. 2385
  9. 798
  10. 1926
  11. 6228
  12. 1752
  13. 3280
  14. 7992
  15. 2031
  16. 4914
  17. 1938
  18. 4347
  19. 3576
  20. 1216
  21. 2028
  22. 1020
  23. 3447
  24. 2205
  25. 3008
  26. 1192
  27. 8649
  28. 1323
  29. 3160
  30. 993
  31. 1374
  32. 1965
  33. 2328
  34. 2688
  35. 532
  36. 2317
  37. 3285
  38. 2836
  39. 1515
  40. 3052

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