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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 650 · 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. 1.753 × 3 =
  2. 2.373 × 5 =
  3. 3.289 × 6 =
  4. 4.867 × 9 =
  5. 5.732 × 6 =
  6. 6.581 × 8 =
  7. 7.113 × 8 =
  8. 8.714 × 7 =
  9. 9.672 × 4 =
  10. 10.312 × 9 =
  11. 11.643 × 9 =
  12. 12.489 × 9 =
  13. 13.144 × 6 =
  14. 14.857 × 5 =
  15. 15.389 × 4 =
  16. 16.423 × 4 =
  17. 17.931 × 6 =
  18. 18.671 × 9 =
  19. 19.903 × 4 =
  20. 20.422 × 3 =
  21. 21.742 × 5 =
  22. 22.175 × 6 =
  23. 23.483 × 7 =
  24. 24.484 × 8 =
  25. 25.187 × 3 =
  26. 26.366 × 5 =
  27. 27.944 × 5 =
  28. 28.242 × 5 =
  29. 29.706 × 6 =
  30. 30.221 × 5 =
  31. 31.556 × 7 =
  32. 32.321 × 8 =
  33. 33.165 × 3 =
  34. 34.931 × 9 =
  35. 35.484 × 7 =
  36. 36.544 × 4 =
  37. 37.342 × 6 =
  38. 38.904 × 4 =
  39. 39.665 × 3 =
  40. 40.393 × 6 =

Answer key

  1. 2259
  2. 1865
  3. 1734
  4. 7803
  5. 4392
  6. 4648
  7. 904
  8. 4998
  9. 2688
  10. 2808
  11. 5787
  12. 4401
  13. 864
  14. 4285
  15. 1556
  16. 1692
  17. 5586
  18. 6039
  19. 3612
  20. 1266
  21. 3710
  22. 1050
  23. 3381
  24. 3872
  25. 561
  26. 1830
  27. 4720
  28. 1210
  29. 4236
  30. 1105
  31. 3892
  32. 2568
  33. 495
  34. 8379
  35. 3388
  36. 2176
  37. 2052
  38. 3616
  39. 1995
  40. 2358

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