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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 800 · 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. 1.627 × 7 =
  2. 2.372 × 9 =
  3. 3.457 × 6 =
  4. 4.493 × 7 =
  5. 5.886 × 8 =
  6. 6.927 × 7 =
  7. 7.152 × 5 =
  8. 8.571 × 9 =
  9. 9.762 × 8 =
  10. 10.477 × 7 =
  11. 11.946 × 7 =
  12. 12.144 × 7 =
  13. 13.202 × 8 =
  14. 14.571 × 8 =
  15. 15.891 × 4 =
  16. 16.606 × 3 =
  17. 17.661 × 8 =
  18. 18.949 × 7 =
  19. 19.631 × 5 =
  20. 20.593 × 3 =
  21. 21.891 × 9 =
  22. 22.722 × 6 =
  23. 23.621 × 7 =
  24. 24.836 × 5 =
  25. 25.159 × 7 =
  26. 26.184 × 7 =
  27. 27.284 × 5 =
  28. 28.898 × 4 =
  29. 29.591 × 4 =
  30. 30.885 × 6 =
  31. 31.531 × 8 =
  32. 32.451 × 9 =
  33. 33.326 × 8 =
  34. 34.246 × 6 =
  35. 35.827 × 4 =
  36. 36.832 × 9 =
  37. 37.372 × 3 =
  38. 38.632 × 5 =
  39. 39.626 × 7 =
  40. 40.629 × 6 =

Answer key

  1. 4389
  2. 3348
  3. 2742
  4. 3451
  5. 7088
  6. 6489
  7. 760
  8. 5139
  9. 6096
  10. 3339
  11. 6622
  12. 1008
  13. 1616
  14. 4568
  15. 3564
  16. 1818
  17. 5288
  18. 6643
  19. 3155
  20. 1779
  21. 8019
  22. 4332
  23. 4347
  24. 4180
  25. 1113
  26. 1288
  27. 1420
  28. 3592
  29. 2364
  30. 5310
  31. 4248
  32. 4059
  33. 2608
  34. 1476
  35. 3308
  36. 7488
  37. 1116
  38. 3160
  39. 4382
  40. 3774

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