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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 34 · 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. 1.177 × 4 =
  2. 2.882 × 9 =
  3. 3.899 × 3 =
  4. 4.624 × 5 =
  5. 5.576 × 9 =
  6. 6.775 × 4 =
  7. 7.361 × 9 =
  8. 8.317 × 4 =
  9. 9.821 × 8 =
  10. 10.763 × 8 =
  11. 11.187 × 3 =
  12. 12.816 × 9 =
  13. 13.217 × 9 =
  14. 14.534 × 3 =
  15. 15.126 × 3 =
  16. 16.144 × 7 =
  17. 17.347 × 5 =
  18. 18.719 × 3 =
  19. 19.534 × 8 =
  20. 20.238 × 3 =
  21. 21.273 × 3 =
  22. 22.315 × 5 =
  23. 23.937 × 3 =
  24. 24.824 × 6 =
  25. 25.752 × 8 =
  26. 26.165 × 5 =
  27. 27.271 × 3 =
  28. 28.973 × 3 =
  29. 29.178 × 7 =
  30. 30.243 × 7 =
  31. 31.948 × 3 =
  32. 32.308 × 4 =
  33. 33.278 × 4 =
  34. 34.583 × 4 =
  35. 35.729 × 7 =
  36. 36.665 × 3 =
  37. 37.576 × 4 =
  38. 38.344 × 3 =
  39. 39.481 × 9 =
  40. 40.264 × 6 =

Answer key

  1. 708
  2. 7938
  3. 2697
  4. 3120
  5. 5184
  6. 3100
  7. 3249
  8. 1268
  9. 6568
  10. 6104
  11. 561
  12. 7344
  13. 1953
  14. 1602
  15. 378
  16. 1008
  17. 1735
  18. 2157
  19. 4272
  20. 714
  21. 819
  22. 1575
  23. 2811
  24. 4944
  25. 6016
  26. 825
  27. 813
  28. 2919
  29. 1246
  30. 1701
  31. 2844
  32. 1232
  33. 1112
  34. 2332
  35. 5103
  36. 1995
  37. 2304
  38. 1032
  39. 4329
  40. 1584

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