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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 654 · 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. 1.339 × 7 =
  2. 2.911 × 8 =
  3. 3.193 × 6 =
  4. 4.731 × 4 =
  5. 5.842 × 5 =
  6. 6.973 × 3 =
  7. 7.509 × 4 =
  8. 8.666 × 7 =
  9. 9.223 × 8 =
  10. 10.121 × 8 =
  11. 11.312 × 5 =
  12. 12.448 × 3 =
  13. 13.752 × 7 =
  14. 14.958 × 3 =
  15. 15.957 × 8 =
  16. 16.421 × 4 =
  17. 17.678 × 6 =
  18. 18.538 × 3 =
  19. 19.879 × 4 =
  20. 20.279 × 8 =
  21. 21.715 × 9 =
  22. 22.774 × 3 =
  23. 23.218 × 5 =
  24. 24.581 × 9 =
  25. 25.577 × 8 =
  26. 26.807 × 6 =
  27. 27.113 × 4 =
  28. 28.916 × 6 =
  29. 29.531 × 6 =
  30. 30.126 × 8 =
  31. 31.329 × 8 =
  32. 32.117 × 6 =
  33. 33.201 × 7 =
  34. 34.573 × 3 =
  35. 35.757 × 3 =
  36. 36.464 × 6 =
  37. 37.118 × 3 =
  38. 38.988 × 4 =
  39. 39.561 × 8 =
  40. 40.323 × 8 =

Answer key

  1. 2373
  2. 7288
  3. 1158
  4. 2924
  5. 4210
  6. 2919
  7. 2036
  8. 4662
  9. 1784
  10. 968
  11. 1560
  12. 1344
  13. 5264
  14. 2874
  15. 7656
  16. 1684
  17. 4068
  18. 1614
  19. 3516
  20. 2232
  21. 6435
  22. 2322
  23. 1090
  24. 5229
  25. 4616
  26. 4842
  27. 452
  28. 5496
  29. 3186
  30. 1008
  31. 2632
  32. 702
  33. 1407
  34. 1719
  35. 2271
  36. 2784
  37. 354
  38. 3952
  39. 4488
  40. 2584

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