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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 481 · 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. 1.398 × 5 =
  2. 2.885 × 3 =
  3. 3.391 × 7 =
  4. 4.266 × 6 =
  5. 5.197 × 7 =
  6. 6.938 × 5 =
  7. 7.521 × 6 =
  8. 8.815 × 9 =
  9. 9.743 × 3 =
  10. 10.333 × 3 =
  11. 11.404 × 3 =
  12. 12.845 × 4 =
  13. 13.955 × 5 =
  14. 14.221 × 3 =
  15. 15.207 × 8 =
  16. 16.328 × 8 =
  17. 17.239 × 8 =
  18. 18.207 × 4 =
  19. 19.951 × 6 =
  20. 20.961 × 5 =
  21. 21.187 × 4 =
  22. 22.481 × 6 =
  23. 23.711 × 5 =
  24. 24.861 × 8 =
  25. 25.491 × 6 =
  26. 26.338 × 3 =
  27. 27.396 × 3 =
  28. 28.338 × 7 =
  29. 29.938 × 3 =
  30. 30.208 × 3 =
  31. 31.713 × 8 =
  32. 32.466 × 4 =
  33. 33.186 × 8 =
  34. 34.541 × 7 =
  35. 35.252 × 3 =
  36. 36.408 × 9 =
  37. 37.264 × 3 =
  38. 38.676 × 4 =
  39. 39.631 × 6 =
  40. 40.224 × 9 =

Answer key

  1. 1990
  2. 2655
  3. 2737
  4. 1596
  5. 1379
  6. 4690
  7. 3126
  8. 7335
  9. 2229
  10. 999
  11. 1212
  12. 3380
  13. 4775
  14. 663
  15. 1656
  16. 2624
  17. 1912
  18. 828
  19. 5706
  20. 4805
  21. 748
  22. 2886
  23. 3555
  24. 6888
  25. 2946
  26. 1014
  27. 1188
  28. 2366
  29. 2814
  30. 624
  31. 5704
  32. 1864
  33. 1488
  34. 3787
  35. 756
  36. 3672
  37. 792
  38. 2704
  39. 3786
  40. 2016

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