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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 393 · 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. 1.275 × 8 =
  2. 2.501 × 3 =
  3. 3.538 × 8 =
  4. 4.169 × 6 =
  5. 5.419 × 9 =
  6. 6.395 × 9 =
  7. 7.685 × 9 =
  8. 8.121 × 9 =
  9. 9.581 × 7 =
  10. 10.854 × 4 =
  11. 11.371 × 8 =
  12. 12.207 × 3 =
  13. 13.476 × 4 =
  14. 14.544 × 6 =
  15. 15.615 × 3 =
  16. 16.711 × 9 =
  17. 17.187 × 3 =
  18. 18.624 × 3 =
  19. 19.479 × 8 =
  20. 20.481 × 9 =
  21. 21.595 × 7 =
  22. 22.888 × 7 =
  23. 23.841 × 6 =
  24. 24.788 × 5 =
  25. 25.369 × 7 =
  26. 26.821 × 7 =
  27. 27.736 × 3 =
  28. 28.189 × 5 =
  29. 29.142 × 3 =
  30. 30.518 × 8 =
  31. 31.385 × 3 =
  32. 32.605 × 6 =
  33. 33.973 × 8 =
  34. 34.451 × 7 =
  35. 35.366 × 5 =
  36. 36.441 × 8 =
  37. 37.768 × 9 =
  38. 38.847 × 3 =
  39. 39.432 × 9 =
  40. 40.397 × 6 =

Answer key

  1. 2200
  2. 1503
  3. 4304
  4. 1014
  5. 3771
  6. 3555
  7. 6165
  8. 1089
  9. 4067
  10. 3416
  11. 2968
  12. 621
  13. 1904
  14. 3264
  15. 1845
  16. 6399
  17. 561
  18. 1872
  19. 3832
  20. 4329
  21. 4165
  22. 6216
  23. 5046
  24. 3940
  25. 2583
  26. 5747
  27. 2208
  28. 945
  29. 426
  30. 4144
  31. 1155
  32. 3630
  33. 7784
  34. 3157
  35. 1830
  36. 3528
  37. 6912
  38. 2541
  39. 3888
  40. 2382

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