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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 146 · 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. 1.861 × 3 =
  2. 2.986 × 4 =
  3. 3.232 × 4 =
  4. 4.471 × 5 =
  5. 5.265 × 7 =
  6. 6.577 × 3 =
  7. 7.456 × 6 =
  8. 8.126 × 3 =
  9. 9.475 × 9 =
  10. 10.662 × 9 =
  11. 11.578 × 5 =
  12. 12.391 × 9 =
  13. 13.329 × 7 =
  14. 14.161 × 8 =
  15. 15.966 × 3 =
  16. 16.357 × 7 =
  17. 17.279 × 8 =
  18. 18.947 × 6 =
  19. 19.316 × 3 =
  20. 20.491 × 6 =
  21. 21.395 × 9 =
  22. 22.502 × 3 =
  23. 23.131 × 4 =
  24. 24.153 × 6 =
  25. 25.855 × 7 =
  26. 26.822 × 3 =
  27. 27.694 × 8 =
  28. 28.329 × 3 =
  29. 29.201 × 9 =
  30. 30.303 × 9 =
  31. 31.841 × 5 =
  32. 32.972 × 4 =
  33. 33.859 × 5 =
  34. 34.761 × 3 =
  35. 35.221 × 8 =
  36. 36.273 × 4 =
  37. 37.525 × 3 =
  38. 38.846 × 5 =
  39. 39.574 × 9 =
  40. 40.431 × 5 =

Answer key

  1. 2583
  2. 3944
  3. 928
  4. 2355
  5. 1855
  6. 1731
  7. 2736
  8. 378
  9. 4275
  10. 5958
  11. 2890
  12. 3519
  13. 2303
  14. 1288
  15. 2898
  16. 2499
  17. 2232
  18. 5682
  19. 948
  20. 2946
  21. 3555
  22. 1506
  23. 524
  24. 918
  25. 5985
  26. 2466
  27. 5552
  28. 987
  29. 1809
  30. 2727
  31. 4205
  32. 3888
  33. 4295
  34. 2283
  35. 1768
  36. 1092
  37. 1575
  38. 4230
  39. 5166
  40. 2155

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