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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 231 · 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. 1.808 × 9 =
  2. 2.296 × 9 =
  3. 3.756 × 4 =
  4. 4.243 × 4 =
  5. 5.363 × 6 =
  6. 6.155 × 9 =
  7. 7.865 × 4 =
  8. 8.974 × 8 =
  9. 9.134 × 5 =
  10. 10.278 × 5 =
  11. 11.973 × 7 =
  12. 12.429 × 8 =
  13. 13.956 × 4 =
  14. 14.521 × 9 =
  15. 15.688 × 4 =
  16. 16.433 × 7 =
  17. 17.389 × 9 =
  18. 18.339 × 3 =
  19. 19.184 × 3 =
  20. 20.849 × 9 =
  21. 21.624 × 3 =
  22. 22.477 × 4 =
  23. 23.369 × 4 =
  24. 24.227 × 9 =
  25. 25.526 × 3 =
  26. 26.322 × 7 =
  27. 27.392 × 7 =
  28. 28.978 × 6 =
  29. 29.406 × 9 =
  30. 30.811 × 6 =
  31. 31.698 × 8 =
  32. 32.913 × 9 =
  33. 33.266 × 6 =
  34. 34.521 × 3 =
  35. 35.753 × 6 =
  36. 36.989 × 5 =
  37. 37.491 × 8 =
  38. 38.934 × 3 =
  39. 39.943 × 7 =
  40. 40.743 × 8 =

Answer key

  1. 7272
  2. 2664
  3. 3024
  4. 972
  5. 2178
  6. 1395
  7. 3460
  8. 7792
  9. 670
  10. 1390
  11. 6811
  12. 3432
  13. 3824
  14. 4689
  15. 2752
  16. 3031
  17. 3501
  18. 1017
  19. 552
  20. 7641
  21. 1872
  22. 1908
  23. 1476
  24. 2043
  25. 1578
  26. 2254
  27. 2744
  28. 5868
  29. 3654
  30. 4866
  31. 5584
  32. 8217
  33. 1596
  34. 1563
  35. 4518
  36. 4945
  37. 3928
  38. 2802
  39. 6601
  40. 5944

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