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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 203 · 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. 1.243 × 9 =
  2. 2.879 × 6 =
  3. 3.702 × 7 =
  4. 4.209 × 7 =
  5. 5.562 × 6 =
  6. 6.322 × 8 =
  7. 7.545 × 7 =
  8. 8.741 × 7 =
  9. 9.304 × 9 =
  10. 10.627 × 3 =
  11. 11.221 × 7 =
  12. 12.766 × 8 =
  13. 13.631 × 4 =
  14. 14.302 × 7 =
  15. 15.211 × 4 =
  16. 16.962 × 3 =
  17. 17.694 × 5 =
  18. 18.303 × 7 =
  19. 19.499 × 5 =
  20. 20.357 × 8 =
  21. 21.842 × 3 =
  22. 22.721 × 7 =
  23. 23.899 × 7 =
  24. 24.606 × 3 =
  25. 25.957 × 7 =
  26. 26.271 × 5 =
  27. 27.323 × 4 =
  28. 28.464 × 6 =
  29. 29.383 × 5 =
  30. 30.202 × 6 =
  31. 31.701 × 3 =
  32. 32.474 × 8 =
  33. 33.911 × 9 =
  34. 34.311 × 9 =
  35. 35.226 × 8 =
  36. 36.275 × 7 =
  37. 37.359 × 4 =
  38. 38.568 × 3 =
  39. 39.501 × 8 =
  40. 40.513 × 3 =

Answer key

  1. 2187
  2. 5274
  3. 4914
  4. 1463
  5. 3372
  6. 2576
  7. 3815
  8. 5187
  9. 2736
  10. 1881
  11. 1547
  12. 6128
  13. 2524
  14. 2114
  15. 844
  16. 2886
  17. 3470
  18. 2121
  19. 2495
  20. 2856
  21. 2526
  22. 5047
  23. 6293
  24. 1818
  25. 6699
  26. 1355
  27. 1292
  28. 2784
  29. 1915
  30. 1212
  31. 2103
  32. 3792
  33. 8199
  34. 2799
  35. 1808
  36. 1925
  37. 1436
  38. 1704
  39. 4008
  40. 1539

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