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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 270 · 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. 1.746 × 3 =
  2. 2.333 × 5 =
  3. 3.961 × 4 =
  4. 4.156 × 6 =
  5. 5.912 × 4 =
  6. 6.709 × 8 =
  7. 7.322 × 7 =
  8. 8.964 × 6 =
  9. 9.331 × 5 =
  10. 10.377 × 7 =
  11. 11.636 × 9 =
  12. 12.899 × 8 =
  13. 13.975 × 5 =
  14. 14.423 × 7 =
  15. 15.327 × 3 =
  16. 16.281 × 6 =
  17. 17.447 × 3 =
  18. 18.396 × 7 =
  19. 19.312 × 8 =
  20. 20.239 × 9 =
  21. 21.122 × 3 =
  22. 22.815 × 6 =
  23. 23.239 × 5 =
  24. 24.291 × 4 =
  25. 25.141 × 5 =
  26. 26.153 × 7 =
  27. 27.976 × 8 =
  28. 28.513 × 5 =
  29. 29.568 × 8 =
  30. 30.362 × 5 =
  31. 31.704 × 4 =
  32. 32.159 × 8 =
  33. 33.245 × 5 =
  34. 34.335 × 3 =
  35. 35.811 × 9 =
  36. 36.734 × 6 =
  37. 37.131 × 5 =
  38. 38.787 × 9 =
  39. 39.274 × 6 =
  40. 40.438 × 9 =

Answer key

  1. 2238
  2. 1665
  3. 3844
  4. 936
  5. 3648
  6. 5672
  7. 2254
  8. 5784
  9. 1655
  10. 2639
  11. 5724
  12. 7192
  13. 4875
  14. 2961
  15. 981
  16. 1686
  17. 1341
  18. 2772
  19. 2496
  20. 2151
  21. 366
  22. 4890
  23. 1195
  24. 1164
  25. 705
  26. 1071
  27. 7808
  28. 2565
  29. 4544
  30. 1810
  31. 2816
  32. 1272
  33. 1225
  34. 1005
  35. 7299
  36. 4404
  37. 655
  38. 7083
  39. 1644
  40. 3942

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