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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 367 · 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. 1.166 × 5 =
  2. 2.918 × 6 =
  3. 3.435 × 3 =
  4. 4.146 × 7 =
  5. 5.655 × 6 =
  6. 6.403 × 4 =
  7. 7.391 × 4 =
  8. 8.575 × 5 =
  9. 9.429 × 9 =
  10. 10.284 × 3 =
  11. 11.346 × 4 =
  12. 12.764 × 7 =
  13. 13.304 × 9 =
  14. 14.265 × 3 =
  15. 15.113 × 3 =
  16. 16.953 × 4 =
  17. 17.421 × 5 =
  18. 18.494 × 9 =
  19. 19.301 × 8 =
  20. 20.545 × 8 =
  21. 21.808 × 7 =
  22. 22.526 × 7 =
  23. 23.541 × 3 =
  24. 24.671 × 9 =
  25. 25.264 × 3 =
  26. 26.938 × 6 =
  27. 27.519 × 8 =
  28. 28.976 × 9 =
  29. 29.179 × 6 =
  30. 30.142 × 9 =
  31. 31.353 × 7 =
  32. 32.179 × 7 =
  33. 33.151 × 8 =
  34. 34.632 × 6 =
  35. 35.337 × 5 =
  36. 36.761 × 3 =
  37. 37.191 × 6 =
  38. 38.794 × 7 =
  39. 39.302 × 7 =
  40. 40.318 × 9 =

Answer key

  1. 830
  2. 5508
  3. 1305
  4. 1022
  5. 3930
  6. 1612
  7. 1564
  8. 2875
  9. 3861
  10. 852
  11. 1384
  12. 5348
  13. 2736
  14. 795
  15. 339
  16. 3812
  17. 2105
  18. 4446
  19. 2408
  20. 4360
  21. 5656
  22. 3682
  23. 1623
  24. 6039
  25. 792
  26. 5628
  27. 4152
  28. 8784
  29. 1074
  30. 1278
  31. 2471
  32. 1253
  33. 1208
  34. 3792
  35. 1685
  36. 2283
  37. 1146
  38. 5558
  39. 2114
  40. 2862

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