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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 212 · 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. 1.299 × 5 =
  2. 2.929 × 6 =
  3. 3.888 × 3 =
  4. 4.131 × 3 =
  5. 5.844 × 9 =
  6. 6.722 × 7 =
  7. 7.891 × 5 =
  8. 8.694 × 3 =
  9. 9.115 × 4 =
  10. 10.517 × 3 =
  11. 11.626 × 7 =
  12. 12.522 × 8 =
  13. 13.442 × 5 =
  14. 14.642 × 7 =
  15. 15.421 × 9 =
  16. 16.364 × 5 =
  17. 17.633 × 4 =
  18. 18.581 × 3 =
  19. 19.955 × 6 =
  20. 20.567 × 9 =
  21. 21.584 × 5 =
  22. 22.221 × 5 =
  23. 23.677 × 7 =
  24. 24.284 × 4 =
  25. 25.407 × 6 =
  26. 26.136 × 8 =
  27. 27.699 × 9 =
  28. 28.502 × 7 =
  29. 29.324 × 3 =
  30. 30.762 × 8 =
  31. 31.698 × 4 =
  32. 32.844 × 3 =
  33. 33.361 × 4 =
  34. 34.356 × 6 =
  35. 35.924 × 9 =
  36. 36.154 × 3 =
  37. 37.734 × 5 =
  38. 38.481 × 8 =
  39. 39.728 × 9 =
  40. 40.527 × 8 =

Answer key

  1. 1495
  2. 5574
  3. 2664
  4. 393
  5. 7596
  6. 5054
  7. 4455
  8. 2082
  9. 460
  10. 1551
  11. 4382
  12. 4176
  13. 2210
  14. 4494
  15. 3789
  16. 1820
  17. 2532
  18. 1743
  19. 5730
  20. 5103
  21. 2920
  22. 1105
  23. 4739
  24. 1136
  25. 2442
  26. 1088
  27. 6291
  28. 3514
  29. 972
  30. 6096
  31. 2792
  32. 2532
  33. 1444
  34. 2136
  35. 8316
  36. 462
  37. 3670
  38. 3848
  39. 6552
  40. 4216

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