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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 896 · 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. 1.405 × 4 =
  2. 2.584 × 8 =
  3. 3.393 × 4 =
  4. 4.503 × 3 =
  5. 5.946 × 5 =
  6. 6.415 × 5 =
  7. 7.323 × 8 =
  8. 8.404 × 9 =
  9. 9.969 × 9 =
  10. 10.703 × 5 =
  11. 11.418 × 3 =
  12. 12.675 × 4 =
  13. 13.312 × 5 =
  14. 14.171 × 5 =
  15. 15.291 × 8 =
  16. 16.282 × 4 =
  17. 17.429 × 3 =
  18. 18.225 × 4 =
  19. 19.368 × 9 =
  20. 20.681 × 7 =
  21. 21.914 × 5 =
  22. 22.697 × 7 =
  23. 23.255 × 4 =
  24. 24.635 × 6 =
  25. 25.713 × 7 =
  26. 26.866 × 9 =
  27. 27.181 × 5 =
  28. 28.455 × 3 =
  29. 29.781 × 7 =
  30. 30.198 × 9 =
  31. 31.366 × 9 =
  32. 32.287 × 9 =
  33. 33.763 × 9 =
  34. 34.802 × 5 =
  35. 35.531 × 7 =
  36. 36.654 × 4 =
  37. 37.251 × 4 =
  38. 38.727 × 9 =
  39. 39.878 × 4 =
  40. 40.533 × 8 =

Answer key

  1. 1620
  2. 4672
  3. 1572
  4. 1509
  5. 4730
  6. 2075
  7. 2584
  8. 3636
  9. 8721
  10. 3515
  11. 1254
  12. 2700
  13. 1560
  14. 855
  15. 2328
  16. 1128
  17. 1287
  18. 900
  19. 3312
  20. 4767
  21. 4570
  22. 4879
  23. 1020
  24. 3810
  25. 4991
  26. 7794
  27. 905
  28. 1365
  29. 5467
  30. 1782
  31. 3294
  32. 2583
  33. 6867
  34. 4010
  35. 3717
  36. 2616
  37. 1004
  38. 6543
  39. 3512
  40. 4264

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