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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 556 · 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. 1.235 × 3 =
  2. 2.806 × 8 =
  3. 3.766 × 7 =
  4. 4.761 × 6 =
  5. 5.259 × 5 =
  6. 6.593 × 7 =
  7. 7.171 × 9 =
  8. 8.216 × 3 =
  9. 9.144 × 6 =
  10. 10.637 × 6 =
  11. 11.791 × 8 =
  12. 12.427 × 6 =
  13. 13.232 × 3 =
  14. 14.273 × 4 =
  15. 15.721 × 7 =
  16. 16.125 × 4 =
  17. 17.131 × 3 =
  18. 18.719 × 4 =
  19. 19.871 × 9 =
  20. 20.241 × 6 =
  21. 21.264 × 3 =
  22. 22.161 × 7 =
  23. 23.494 × 4 =
  24. 24.804 × 5 =
  25. 25.721 × 9 =
  26. 26.583 × 9 =
  27. 27.289 × 5 =
  28. 28.431 × 8 =
  29. 29.368 × 3 =
  30. 30.589 × 3 =
  31. 31.591 × 6 =
  32. 32.366 × 4 =
  33. 33.355 × 5 =
  34. 34.518 × 4 =
  35. 35.412 × 4 =
  36. 36.662 × 8 =
  37. 37.481 × 5 =
  38. 38.346 × 9 =
  39. 39.867 × 6 =
  40. 40.937 × 3 =

Answer key

  1. 705
  2. 6448
  3. 5362
  4. 4566
  5. 1295
  6. 4151
  7. 1539
  8. 648
  9. 864
  10. 3822
  11. 6328
  12. 2562
  13. 696
  14. 1092
  15. 5047
  16. 500
  17. 393
  18. 2876
  19. 7839
  20. 1446
  21. 792
  22. 1127
  23. 1976
  24. 4020
  25. 6489
  26. 5247
  27. 1445
  28. 3448
  29. 1104
  30. 1767
  31. 3546
  32. 1464
  33. 1775
  34. 2072
  35. 1648
  36. 5296
  37. 2405
  38. 3114
  39. 5202
  40. 2811

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