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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 737 · 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. 1.675 × 9 =
  2. 2.295 × 5 =
  3. 3.361 × 6 =
  4. 4.301 × 7 =
  5. 5.484 × 8 =
  6. 6.228 × 7 =
  7. 7.901 × 5 =
  8. 8.818 × 5 =
  9. 9.301 × 6 =
  10. 10.835 × 4 =
  11. 11.429 × 9 =
  12. 12.299 × 5 =
  13. 13.218 × 8 =
  14. 14.364 × 3 =
  15. 15.763 × 4 =
  16. 16.643 × 5 =
  17. 17.814 × 7 =
  18. 18.649 × 4 =
  19. 19.318 × 9 =
  20. 20.386 × 5 =
  21. 21.507 × 7 =
  22. 22.204 × 3 =
  23. 23.361 × 4 =
  24. 24.336 × 8 =
  25. 25.374 × 9 =
  26. 26.439 × 8 =
  27. 27.847 × 4 =
  28. 28.241 × 7 =
  29. 29.311 × 8 =
  30. 30.168 × 5 =
  31. 31.549 × 6 =
  32. 32.876 × 6 =
  33. 33.345 × 4 =
  34. 34.878 × 5 =
  35. 35.525 × 3 =
  36. 36.973 × 5 =
  37. 37.471 × 8 =
  38. 38.324 × 4 =
  39. 39.141 × 5 =
  40. 40.322 × 5 =

Answer key

  1. 6075
  2. 1475
  3. 2166
  4. 2107
  5. 3872
  6. 1596
  7. 4505
  8. 4090
  9. 1806
  10. 3340
  11. 3861
  12. 1495
  13. 1744
  14. 1092
  15. 3052
  16. 3215
  17. 5698
  18. 2596
  19. 2862
  20. 1930
  21. 3549
  22. 612
  23. 1444
  24. 2688
  25. 3366
  26. 3512
  27. 3388
  28. 1687
  29. 2488
  30. 840
  31. 3294
  32. 5256
  33. 1380
  34. 4390
  35. 1575
  36. 4865
  37. 3768
  38. 1296
  39. 705
  40. 1610

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