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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 635 · 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. 1.611 × 4 =
  2. 2.942 × 7 =
  3. 3.302 × 5 =
  4. 4.815 × 3 =
  5. 5.232 × 7 =
  6. 6.263 × 8 =
  7. 7.238 × 7 =
  8. 8.861 × 6 =
  9. 9.205 × 6 =
  10. 10.115 × 4 =
  11. 11.561 × 6 =
  12. 12.211 × 7 =
  13. 13.688 × 8 =
  14. 14.258 × 9 =
  15. 15.631 × 6 =
  16. 16.665 × 6 =
  17. 17.693 × 8 =
  18. 18.234 × 4 =
  19. 19.484 × 5 =
  20. 20.751 × 7 =
  21. 21.513 × 6 =
  22. 22.868 × 9 =
  23. 23.719 × 9 =
  24. 24.639 × 9 =
  25. 25.448 × 9 =
  26. 26.171 × 7 =
  27. 27.403 × 5 =
  28. 28.986 × 4 =
  29. 29.603 × 7 =
  30. 30.963 × 6 =
  31. 31.291 × 3 =
  32. 32.326 × 4 =
  33. 33.935 × 3 =
  34. 34.146 × 5 =
  35. 35.361 × 9 =
  36. 36.539 × 7 =
  37. 37.325 × 9 =
  38. 38.862 × 3 =
  39. 39.835 × 3 =
  40. 40.581 × 6 =

Answer key

  1. 2444
  2. 6594
  3. 1510
  4. 2445
  5. 1624
  6. 2104
  7. 1666
  8. 5166
  9. 1230
  10. 460
  11. 3366
  12. 1477
  13. 5504
  14. 2322
  15. 3786
  16. 3990
  17. 5544
  18. 936
  19. 2420
  20. 5257
  21. 3078
  22. 7812
  23. 6471
  24. 5751
  25. 4032
  26. 1197
  27. 2015
  28. 3944
  29. 4221
  30. 5778
  31. 873
  32. 1304
  33. 2805
  34. 730
  35. 3249
  36. 3773
  37. 2925
  38. 2586
  39. 2505
  40. 3486

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