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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 286 · 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. 1.718 × 9 =
  2. 2.564 × 4 =
  3. 3.527 × 3 =
  4. 4.628 × 9 =
  5. 5.596 × 4 =
  6. 6.151 × 7 =
  7. 7.826 × 8 =
  8. 8.242 × 6 =
  9. 9.286 × 3 =
  10. 10.667 × 7 =
  11. 11.261 × 3 =
  12. 12.484 × 4 =
  13. 13.211 × 9 =
  14. 14.287 × 3 =
  15. 15.614 × 6 =
  16. 16.928 × 4 =
  17. 17.777 × 4 =
  18. 18.876 × 7 =
  19. 19.219 × 6 =
  20. 20.323 × 5 =
  21. 21.632 × 3 =
  22. 22.307 × 9 =
  23. 23.368 × 4 =
  24. 24.673 × 9 =
  25. 25.447 × 9 =
  26. 26.481 × 7 =
  27. 27.336 × 3 =
  28. 28.369 × 5 =
  29. 29.791 × 5 =
  30. 30.467 × 4 =
  31. 31.182 × 9 =
  32. 32.128 × 6 =
  33. 33.274 × 9 =
  34. 34.553 × 3 =
  35. 35.207 × 9 =
  36. 36.485 × 4 =
  37. 37.911 × 4 =
  38. 38.548 × 3 =
  39. 39.359 × 4 =
  40. 40.896 × 6 =

Answer key

  1. 6462
  2. 2256
  3. 1581
  4. 5652
  5. 2384
  6. 1057
  7. 6608
  8. 1452
  9. 858
  10. 4669
  11. 783
  12. 1936
  13. 1899
  14. 861
  15. 3684
  16. 3712
  17. 3108
  18. 6132
  19. 1314
  20. 1615
  21. 1896
  22. 2763
  23. 1472
  24. 6057
  25. 4023
  26. 3367
  27. 1008
  28. 1845
  29. 3955
  30. 1868
  31. 1638
  32. 768
  33. 2466
  34. 1659
  35. 1863
  36. 1940
  37. 3644
  38. 1644
  39. 1436
  40. 5376

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