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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 41 · 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. 1.351 × 9 =
  2. 2.594 × 8 =
  3. 3.125 × 8 =
  4. 4.364 × 8 =
  5. 5.192 × 7 =
  6. 6.682 × 4 =
  7. 7.738 × 6 =
  8. 8.741 × 3 =
  9. 9.411 × 9 =
  10. 10.473 × 6 =
  11. 11.874 × 5 =
  12. 12.142 × 8 =
  13. 13.272 × 7 =
  14. 14.141 × 4 =
  15. 15.696 × 9 =
  16. 16.811 × 9 =
  17. 17.581 × 5 =
  18. 18.671 × 4 =
  19. 19.595 × 4 =
  20. 20.614 × 3 =
  21. 21.344 × 4 =
  22. 22.481 × 5 =
  23. 23.202 × 8 =
  24. 24.357 × 5 =
  25. 25.406 × 4 =
  26. 26.641 × 3 =
  27. 27.811 × 4 =
  28. 28.232 × 4 =
  29. 29.484 × 9 =
  30. 30.645 × 8 =
  31. 31.931 × 7 =
  32. 32.867 × 5 =
  33. 33.581 × 8 =
  34. 34.706 × 9 =
  35. 35.216 × 8 =
  36. 36.664 × 4 =
  37. 37.211 × 4 =
  38. 38.593 × 8 =
  39. 39.804 × 4 =
  40. 40.256 × 9 =

Answer key

  1. 3159
  2. 4752
  3. 1000
  4. 2912
  5. 1344
  6. 2728
  7. 4428
  8. 2223
  9. 3699
  10. 2838
  11. 4370
  12. 1136
  13. 1904
  14. 564
  15. 6264
  16. 7299
  17. 2905
  18. 2684
  19. 2380
  20. 1842
  21. 1376
  22. 2405
  23. 1616
  24. 1785
  25. 1624
  26. 1923
  27. 3244
  28. 928
  29. 4356
  30. 5160
  31. 6517
  32. 4335
  33. 4648
  34. 6354
  35. 1728
  36. 2656
  37. 844
  38. 4744
  39. 3216
  40. 2304

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