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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 843 · 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. 1.827 × 4 =
  2. 2.444 × 7 =
  3. 3.472 × 6 =
  4. 4.643 × 7 =
  5. 5.935 × 3 =
  6. 6.575 × 9 =
  7. 7.936 × 7 =
  8. 8.916 × 8 =
  9. 9.523 × 6 =
  10. 10.778 × 6 =
  11. 11.545 × 5 =
  12. 12.467 × 8 =
  13. 13.476 × 4 =
  14. 14.581 × 9 =
  15. 15.636 × 6 =
  16. 16.131 × 3 =
  17. 17.799 × 9 =
  18. 18.812 × 3 =
  19. 19.813 × 7 =
  20. 20.416 × 9 =
  21. 21.253 × 3 =
  22. 22.816 × 4 =
  23. 23.181 × 4 =
  24. 24.856 × 8 =
  25. 25.178 × 5 =
  26. 26.271 × 7 =
  27. 27.756 × 9 =
  28. 28.545 × 3 =
  29. 29.695 × 8 =
  30. 30.587 × 4 =
  31. 31.918 × 7 =
  32. 32.448 × 9 =
  33. 33.162 × 6 =
  34. 34.506 × 4 =
  35. 35.583 × 7 =
  36. 36.252 × 7 =
  37. 37.954 × 8 =
  38. 38.556 × 7 =
  39. 39.938 × 9 =
  40. 40.461 × 6 =

Answer key

  1. 3308
  2. 3108
  3. 2832
  4. 4501
  5. 2805
  6. 5175
  7. 6552
  8. 7328
  9. 3138
  10. 4668
  11. 2725
  12. 3736
  13. 1904
  14. 5229
  15. 3816
  16. 393
  17. 7191
  18. 2436
  19. 5691
  20. 3744
  21. 759
  22. 3264
  23. 724
  24. 6848
  25. 890
  26. 1897
  27. 6804
  28. 1635
  29. 5560
  30. 2348
  31. 6426
  32. 4032
  33. 972
  34. 2024
  35. 4081
  36. 1764
  37. 7632
  38. 3892
  39. 8442
  40. 2766

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