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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 322 · 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. 1.175 × 7 =
  2. 2.187 × 5 =
  3. 3.471 × 6 =
  4. 4.963 × 9 =
  5. 5.407 × 9 =
  6. 6.322 × 3 =
  7. 7.409 × 7 =
  8. 8.446 × 7 =
  9. 9.425 × 5 =
  10. 10.591 × 4 =
  11. 11.835 × 6 =
  12. 12.411 × 3 =
  13. 13.841 × 4 =
  14. 14.887 × 9 =
  15. 15.355 × 8 =
  16. 16.954 × 4 =
  17. 17.391 × 5 =
  18. 18.483 × 6 =
  19. 19.941 × 6 =
  20. 20.553 × 9 =
  21. 21.477 × 7 =
  22. 22.853 × 4 =
  23. 23.914 × 8 =
  24. 24.303 × 5 =
  25. 25.789 × 7 =
  26. 26.564 × 7 =
  27. 27.801 × 4 =
  28. 28.116 × 8 =
  29. 29.583 × 3 =
  30. 30.394 × 7 =
  31. 31.301 × 8 =
  32. 32.951 × 9 =
  33. 33.977 × 6 =
  34. 34.755 × 5 =
  35. 35.323 × 5 =
  36. 36.372 × 6 =
  37. 37.424 × 3 =
  38. 38.269 × 3 =
  39. 39.709 × 9 =
  40. 40.851 × 6 =

Answer key

  1. 1225
  2. 935
  3. 2826
  4. 8667
  5. 3663
  6. 966
  7. 2863
  8. 3122
  9. 2125
  10. 2364
  11. 5010
  12. 1233
  13. 3364
  14. 7983
  15. 2840
  16. 3816
  17. 1955
  18. 2898
  19. 5646
  20. 4977
  21. 3339
  22. 3412
  23. 7312
  24. 1515
  25. 5523
  26. 3948
  27. 3204
  28. 928
  29. 1749
  30. 2758
  31. 2408
  32. 8559
  33. 5862
  34. 3775
  35. 1615
  36. 2232
  37. 1272
  38. 807
  39. 6381
  40. 5106

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