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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 192 · 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. 1.601 × 9 =
  2. 2.808 × 5 =
  3. 3.883 × 9 =
  4. 4.988 × 3 =
  5. 5.823 × 7 =
  6. 6.885 × 8 =
  7. 7.162 × 3 =
  8. 8.468 × 7 =
  9. 9.222 × 4 =
  10. 10.571 × 4 =
  11. 11.974 × 8 =
  12. 12.699 × 3 =
  13. 13.413 × 3 =
  14. 14.235 × 8 =
  15. 15.786 × 8 =
  16. 16.905 × 4 =
  17. 17.225 × 6 =
  18. 18.858 × 4 =
  19. 19.515 × 4 =
  20. 20.591 × 9 =
  21. 21.851 × 9 =
  22. 22.187 × 3 =
  23. 23.859 × 6 =
  24. 24.141 × 7 =
  25. 25.956 × 7 =
  26. 26.494 × 4 =
  27. 27.377 × 5 =
  28. 28.588 × 5 =
  29. 29.511 × 7 =
  30. 30.514 × 4 =
  31. 31.587 × 6 =
  32. 32.503 × 3 =
  33. 33.131 × 4 =
  34. 34.852 × 6 =
  35. 35.146 × 6 =
  36. 36.298 × 4 =
  37. 37.967 × 8 =
  38. 38.797 × 8 =
  39. 39.721 × 3 =
  40. 40.554 × 6 =

Answer key

  1. 5409
  2. 4040
  3. 7947
  4. 2964
  5. 5761
  6. 7080
  7. 486
  8. 3276
  9. 888
  10. 2284
  11. 7792
  12. 2097
  13. 1239
  14. 1880
  15. 6288
  16. 3620
  17. 1350
  18. 3432
  19. 2060
  20. 5319
  21. 7659
  22. 561
  23. 5154
  24. 987
  25. 6692
  26. 1976
  27. 1885
  28. 2940
  29. 3577
  30. 2056
  31. 3522
  32. 1509
  33. 524
  34. 5112
  35. 876
  36. 1192
  37. 7736
  38. 6376
  39. 2163
  40. 3324

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