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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 625 · 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. 1.114 × 3 =
  2. 2.674 × 9 =
  3. 3.344 × 4 =
  4. 4.166 × 3 =
  5. 5.197 × 3 =
  6. 6.525 × 4 =
  7. 7.362 × 8 =
  8. 8.688 × 7 =
  9. 9.204 × 4 =
  10. 10.348 × 5 =
  11. 11.726 × 3 =
  12. 12.737 × 3 =
  13. 13.554 × 5 =
  14. 14.627 × 8 =
  15. 15.727 × 4 =
  16. 16.747 × 5 =
  17. 17.498 × 9 =
  18. 18.368 × 8 =
  19. 19.395 × 8 =
  20. 20.332 × 5 =
  21. 21.803 × 3 =
  22. 22.192 × 8 =
  23. 23.783 × 7 =
  24. 24.453 × 6 =
  25. 25.239 × 6 =
  26. 26.221 × 3 =
  27. 27.114 × 5 =
  28. 28.276 × 3 =
  29. 29.763 × 5 =
  30. 30.669 × 5 =
  31. 31.777 × 8 =
  32. 32.489 × 7 =
  33. 33.465 × 7 =
  34. 34.254 × 5 =
  35. 35.158 × 3 =
  36. 36.288 × 9 =
  37. 37.531 × 9 =
  38. 38.486 × 3 =
  39. 39.115 × 7 =
  40. 40.307 × 6 =

Answer key

  1. 342
  2. 6066
  3. 1376
  4. 498
  5. 591
  6. 2100
  7. 2896
  8. 4816
  9. 816
  10. 1740
  11. 2178
  12. 2211
  13. 2770
  14. 5016
  15. 2908
  16. 3735
  17. 4482
  18. 2944
  19. 3160
  20. 1660
  21. 2409
  22. 1536
  23. 5481
  24. 2718
  25. 1434
  26. 663
  27. 570
  28. 828
  29. 3815
  30. 3345
  31. 6216
  32. 3423
  33. 3255
  34. 1270
  35. 474
  36. 2592
  37. 4779
  38. 1458
  39. 805
  40. 1842

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