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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 704 · 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. 1.831 × 3 =
  2. 2.427 × 4 =
  3. 3.522 × 3 =
  4. 4.531 × 6 =
  5. 5.197 × 5 =
  6. 6.337 × 3 =
  7. 7.869 × 6 =
  8. 8.647 × 6 =
  9. 9.463 × 3 =
  10. 10.796 × 7 =
  11. 11.597 × 4 =
  12. 12.361 × 5 =
  13. 13.474 × 4 =
  14. 14.179 × 3 =
  15. 15.275 × 3 =
  16. 16.491 × 3 =
  17. 17.283 × 4 =
  18. 18.175 × 3 =
  19. 19.886 × 6 =
  20. 20.724 × 3 =
  21. 21.811 × 8 =
  22. 22.532 × 9 =
  23. 23.284 × 3 =
  24. 24.965 × 3 =
  25. 25.173 × 3 =
  26. 26.842 × 4 =
  27. 27.561 × 7 =
  28. 28.458 × 8 =
  29. 29.413 × 3 =
  30. 30.785 × 8 =
  31. 31.407 × 9 =
  32. 32.581 × 3 =
  33. 33.122 × 8 =
  34. 34.573 × 3 =
  35. 35.242 × 3 =
  36. 36.441 × 5 =
  37. 37.303 × 3 =
  38. 38.168 × 5 =
  39. 39.889 × 7 =
  40. 40.475 × 6 =

Answer key

  1. 2493
  2. 1708
  3. 1566
  4. 3186
  5. 985
  6. 1011
  7. 5214
  8. 3882
  9. 1389
  10. 5572
  11. 2388
  12. 1805
  13. 1896
  14. 537
  15. 825
  16. 1473
  17. 1132
  18. 525
  19. 5316
  20. 2172
  21. 6488
  22. 4788
  23. 852
  24. 2895
  25. 519
  26. 3368
  27. 3927
  28. 3664
  29. 1239
  30. 6280
  31. 3663
  32. 1743
  33. 976
  34. 1719
  35. 726
  36. 2205
  37. 909
  38. 840
  39. 6223
  40. 2850

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