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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 350 · 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. 1.783 × 9 =
  2. 2.239 × 9 =
  3. 3.836 × 7 =
  4. 4.471 × 7 =
  5. 5.976 × 7 =
  6. 6.408 × 7 =
  7. 7.422 × 9 =
  8. 8.775 × 3 =
  9. 9.599 × 6 =
  10. 10.811 × 5 =
  11. 11.861 × 7 =
  12. 12.748 × 8 =
  13. 13.979 × 9 =
  14. 14.741 × 8 =
  15. 15.633 × 8 =
  16. 16.113 × 9 =
  17. 17.186 × 9 =
  18. 18.943 × 3 =
  19. 19.821 × 9 =
  20. 20.494 × 5 =
  21. 21.251 × 7 =
  22. 22.192 × 3 =
  23. 23.195 × 4 =
  24. 24.261 × 7 =
  25. 25.121 × 5 =
  26. 26.431 × 9 =
  27. 27.707 × 7 =
  28. 28.526 × 4 =
  29. 29.345 × 3 =
  30. 30.945 × 5 =
  31. 31.602 × 9 =
  32. 32.568 × 7 =
  33. 33.704 × 5 =
  34. 34.888 × 8 =
  35. 35.489 × 5 =
  36. 36.295 × 5 =
  37. 37.297 × 9 =
  38. 38.534 × 9 =
  39. 39.489 × 9 =
  40. 40.813 × 3 =

Answer key

  1. 7047
  2. 2151
  3. 5852
  4. 3297
  5. 6832
  6. 2856
  7. 3798
  8. 2325
  9. 3594
  10. 4055
  11. 6027
  12. 5984
  13. 8811
  14. 5928
  15. 5064
  16. 1017
  17. 1674
  18. 2829
  19. 7389
  20. 2470
  21. 1757
  22. 576
  23. 780
  24. 1827
  25. 605
  26. 3879
  27. 4949
  28. 2104
  29. 1035
  30. 4725
  31. 5418
  32. 3976
  33. 3520
  34. 7104
  35. 2445
  36. 1475
  37. 2673
  38. 4806
  39. 4401
  40. 2439

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