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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 305 · 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. 1.403 × 6 =
  2. 2.147 × 9 =
  3. 3.112 × 6 =
  4. 4.287 × 4 =
  5. 5.364 × 4 =
  6. 6.985 × 9 =
  7. 7.354 × 3 =
  8. 8.219 × 9 =
  9. 9.361 × 4 =
  10. 10.787 × 8 =
  11. 11.731 × 8 =
  12. 12.654 × 4 =
  13. 13.818 × 4 =
  14. 14.981 × 9 =
  15. 15.442 × 8 =
  16. 16.881 × 6 =
  17. 17.229 × 8 =
  18. 18.661 × 3 =
  19. 19.351 × 5 =
  20. 20.269 × 6 =
  21. 21.269 × 9 =
  22. 22.276 × 8 =
  23. 23.529 × 6 =
  24. 24.243 × 3 =
  25. 25.605 × 5 =
  26. 26.114 × 3 =
  27. 27.255 × 7 =
  28. 28.174 × 8 =
  29. 29.517 × 3 =
  30. 30.241 × 3 =
  31. 31.248 × 9 =
  32. 32.535 × 9 =
  33. 33.131 × 5 =
  34. 34.595 × 5 =
  35. 35.135 × 4 =
  36. 36.929 × 9 =
  37. 37.799 × 3 =
  38. 38.404 × 8 =
  39. 39.217 × 4 =
  40. 40.641 × 9 =

Answer key

  1. 2418
  2. 1323
  3. 672
  4. 1148
  5. 1456
  6. 8865
  7. 1062
  8. 1971
  9. 1444
  10. 6296
  11. 5848
  12. 2616
  13. 3272
  14. 8829
  15. 3536
  16. 5286
  17. 1832
  18. 1983
  19. 1755
  20. 1614
  21. 2421
  22. 2208
  23. 3174
  24. 729
  25. 3025
  26. 342
  27. 1785
  28. 1392
  29. 1551
  30. 723
  31. 2232
  32. 4815
  33. 655
  34. 2975
  35. 540
  36. 8361
  37. 2397
  38. 3232
  39. 868
  40. 5769

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