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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 714 · 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. 1.236 × 3 =
  2. 2.439 × 4 =
  3. 3.298 × 6 =
  4. 4.519 × 7 =
  5. 5.137 × 6 =
  6. 6.269 × 8 =
  7. 7.356 × 4 =
  8. 8.443 × 7 =
  9. 9.188 × 9 =
  10. 10.482 × 7 =
  11. 11.528 × 5 =
  12. 12.684 × 5 =
  13. 13.244 × 8 =
  14. 14.714 × 4 =
  15. 15.963 × 4 =
  16. 16.479 × 3 =
  17. 17.774 × 4 =
  18. 18.324 × 7 =
  19. 19.901 × 4 =
  20. 20.214 × 7 =
  21. 21.435 × 4 =
  22. 22.607 × 5 =
  23. 23.389 × 4 =
  24. 24.387 × 4 =
  25. 25.679 × 3 =
  26. 26.377 × 7 =
  27. 27.673 × 8 =
  28. 28.361 × 8 =
  29. 29.421 × 7 =
  30. 30.816 × 8 =
  31. 31.514 × 7 =
  32. 32.731 × 5 =
  33. 33.958 × 3 =
  34. 34.352 × 4 =
  35. 35.332 × 5 =
  36. 36.212 × 6 =
  37. 37.781 × 4 =
  38. 38.307 × 8 =
  39. 39.874 × 8 =
  40. 40.524 × 3 =

Answer key

  1. 708
  2. 1756
  3. 1788
  4. 3633
  5. 822
  6. 2152
  7. 1424
  8. 3101
  9. 1692
  10. 3374
  11. 2640
  12. 3420
  13. 1952
  14. 2856
  15. 3852
  16. 1437
  17. 3096
  18. 2268
  19. 3604
  20. 1498
  21. 1740
  22. 3035
  23. 1556
  24. 1548
  25. 2037
  26. 2639
  27. 5384
  28. 2888
  29. 2947
  30. 6528
  31. 3598
  32. 3655
  33. 2874
  34. 1408
  35. 1660
  36. 1272
  37. 3124
  38. 2456
  39. 6992
  40. 1572

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