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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 744 · 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. 1.681 × 9 =
  2. 2.366 × 5 =
  3. 3.715 × 5 =
  4. 4.969 × 4 =
  5. 5.558 × 5 =
  6. 6.474 × 8 =
  7. 7.381 × 9 =
  8. 8.653 × 3 =
  9. 9.224 × 4 =
  10. 10.596 × 6 =
  11. 11.771 × 3 =
  12. 12.507 × 4 =
  13. 13.521 × 8 =
  14. 14.711 × 5 =
  15. 15.437 × 7 =
  16. 16.584 × 7 =
  17. 17.935 × 5 =
  18. 18.295 × 8 =
  19. 19.397 × 8 =
  20. 20.544 × 5 =
  21. 21.336 × 7 =
  22. 22.818 × 4 =
  23. 23.366 × 9 =
  24. 24.454 × 6 =
  25. 25.284 × 8 =
  26. 26.855 × 8 =
  27. 27.463 × 7 =
  28. 28.728 × 5 =
  29. 29.161 × 7 =
  30. 30.879 × 5 =
  31. 31.693 × 5 =
  32. 32.414 × 9 =
  33. 33.861 × 4 =
  34. 34.615 × 6 =
  35. 35.401 × 3 =
  36. 36.892 × 6 =
  37. 37.592 × 7 =
  38. 38.149 × 3 =
  39. 39.351 × 7 =
  40. 40.571 × 5 =

Answer key

  1. 6129
  2. 1830
  3. 3575
  4. 3876
  5. 2790
  6. 3792
  7. 3429
  8. 1959
  9. 896
  10. 3576
  11. 2313
  12. 2028
  13. 4168
  14. 3555
  15. 3059
  16. 4088
  17. 4675
  18. 2360
  19. 3176
  20. 2720
  21. 2352
  22. 3272
  23. 3294
  24. 2724
  25. 2272
  26. 6840
  27. 3241
  28. 3640
  29. 1127
  30. 4395
  31. 3465
  32. 3726
  33. 3444
  34. 3690
  35. 1203
  36. 5352
  37. 4144
  38. 447
  39. 2457
  40. 2855

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