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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 497 · 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. 1.904 × 7 =
  2. 2.751 × 7 =
  3. 3.701 × 3 =
  4. 4.201 × 7 =
  5. 5.371 × 3 =
  6. 6.331 × 9 =
  7. 7.441 × 3 =
  8. 8.536 × 7 =
  9. 9.175 × 7 =
  10. 10.293 × 6 =
  11. 11.419 × 4 =
  12. 12.407 × 3 =
  13. 13.451 × 7 =
  14. 14.791 × 3 =
  15. 15.623 × 9 =
  16. 16.789 × 8 =
  17. 17.453 × 8 =
  18. 18.285 × 9 =
  19. 19.464 × 9 =
  20. 20.565 × 8 =
  21. 21.368 × 3 =
  22. 22.638 × 5 =
  23. 23.166 × 7 =
  24. 24.716 × 4 =
  25. 25.403 × 5 =
  26. 26.612 × 6 =
  27. 27.913 × 3 =
  28. 28.919 × 6 =
  29. 29.887 × 5 =
  30. 30.736 × 5 =
  31. 31.958 × 5 =
  32. 32.971 × 3 =
  33. 33.482 × 5 =
  34. 34.197 × 8 =
  35. 35.413 × 6 =
  36. 36.253 × 3 =
  37. 37.403 × 7 =
  38. 38.716 × 7 =
  39. 39.679 × 4 =
  40. 40.793 × 3 =

Answer key

  1. 6328
  2. 5257
  3. 2103
  4. 1407
  5. 1113
  6. 2979
  7. 1323
  8. 3752
  9. 1225
  10. 1758
  11. 1676
  12. 1221
  13. 3157
  14. 2373
  15. 5607
  16. 6312
  17. 3624
  18. 2565
  19. 4176
  20. 4520
  21. 1104
  22. 3190
  23. 1162
  24. 2864
  25. 2015
  26. 3672
  27. 2739
  28. 5514
  29. 4435
  30. 3680
  31. 4790
  32. 2913
  33. 2410
  34. 1576
  35. 2478
  36. 759
  37. 2821
  38. 5012
  39. 2716
  40. 2379

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