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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 334 · 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. 1.871 × 3 =
  2. 2.757 × 3 =
  3. 3.651 × 7 =
  4. 4.348 × 3 =
  5. 5.646 × 7 =
  6. 6.986 × 8 =
  7. 7.667 × 4 =
  8. 8.488 × 3 =
  9. 9.526 × 4 =
  10. 10.185 × 7 =
  11. 11.812 × 3 =
  12. 12.209 × 5 =
  13. 13.139 × 3 =
  14. 14.446 × 4 =
  15. 15.889 × 4 =
  16. 16.291 × 3 =
  17. 17.486 × 5 =
  18. 18.899 × 6 =
  19. 19.539 × 9 =
  20. 20.365 × 9 =
  21. 21.931 × 3 =
  22. 22.944 × 7 =
  23. 23.742 × 3 =
  24. 24.661 × 8 =
  25. 25.869 × 9 =
  26. 26.134 × 9 =
  27. 27.752 × 3 =
  28. 28.136 × 5 =
  29. 29.724 × 4 =
  30. 30.219 × 7 =
  31. 31.541 × 8 =
  32. 32.874 × 9 =
  33. 33.647 × 9 =
  34. 34.357 × 5 =
  35. 35.174 × 7 =
  36. 36.723 × 8 =
  37. 37.858 × 9 =
  38. 38.534 × 9 =
  39. 39.361 × 7 =
  40. 40.197 × 9 =

Answer key

  1. 2613
  2. 2271
  3. 4557
  4. 1044
  5. 4522
  6. 7888
  7. 2668
  8. 1464
  9. 2104
  10. 1295
  11. 2436
  12. 1045
  13. 417
  14. 1784
  15. 3556
  16. 873
  17. 2430
  18. 5394
  19. 4851
  20. 3285
  21. 2793
  22. 6608
  23. 2226
  24. 5288
  25. 7821
  26. 1206
  27. 2256
  28. 680
  29. 2896
  30. 1533
  31. 4328
  32. 7866
  33. 5823
  34. 1785
  35. 1218
  36. 5784
  37. 7722
  38. 4806
  39. 2527
  40. 1773

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