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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 120 · 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. 1.654 × 9 =
  2. 2.729 × 8 =
  3. 3.841 × 6 =
  4. 4.781 × 6 =
  5. 5.973 × 4 =
  6. 6.875 × 8 =
  7. 7.173 × 8 =
  8. 8.956 × 8 =
  9. 9.361 × 3 =
  10. 10.621 × 9 =
  11. 11.985 × 3 =
  12. 12.576 × 9 =
  13. 13.581 × 4 =
  14. 14.121 × 3 =
  15. 15.434 × 6 =
  16. 16.181 × 4 =
  17. 17.804 × 3 =
  18. 18.702 × 5 =
  19. 19.802 × 6 =
  20. 20.125 × 9 =
  21. 21.921 × 8 =
  22. 22.642 × 3 =
  23. 23.803 × 9 =
  24. 24.716 × 3 =
  25. 25.354 × 9 =
  26. 26.327 × 3 =
  27. 27.244 × 7 =
  28. 28.491 × 8 =
  29. 29.801 × 5 =
  30. 30.918 × 3 =
  31. 31.137 × 9 =
  32. 32.601 × 9 =
  33. 33.818 × 7 =
  34. 34.578 × 8 =
  35. 35.183 × 4 =
  36. 36.686 × 7 =
  37. 37.271 × 5 =
  38. 38.855 × 7 =
  39. 39.611 × 3 =
  40. 40.488 × 5 =

Answer key

  1. 5886
  2. 5832
  3. 5046
  4. 4686
  5. 3892
  6. 7000
  7. 1384
  8. 7648
  9. 1083
  10. 5589
  11. 2955
  12. 5184
  13. 2324
  14. 363
  15. 2604
  16. 724
  17. 2412
  18. 3510
  19. 4812
  20. 1125
  21. 7368
  22. 1926
  23. 7227
  24. 2148
  25. 3186
  26. 981
  27. 1708
  28. 3928
  29. 4005
  30. 2754
  31. 1233
  32. 5409
  33. 5726
  34. 4624
  35. 732
  36. 4802
  37. 1355
  38. 5985
  39. 1833
  40. 2440

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