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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 126 · 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. 1.609 × 9 =
  2. 2.677 × 7 =
  3. 3.818 × 8 =
  4. 4.772 × 4 =
  5. 5.795 × 6 =
  6. 6.744 × 4 =
  7. 7.751 × 6 =
  8. 8.759 × 4 =
  9. 9.856 × 3 =
  10. 10.136 × 4 =
  11. 11.737 × 9 =
  12. 12.275 × 7 =
  13. 13.497 × 7 =
  14. 14.165 × 3 =
  15. 15.361 × 4 =
  16. 16.486 × 6 =
  17. 17.656 × 5 =
  18. 18.916 × 8 =
  19. 19.309 × 7 =
  20. 20.848 × 7 =
  21. 21.801 × 4 =
  22. 22.376 × 3 =
  23. 23.246 × 8 =
  24. 24.223 × 9 =
  25. 25.132 × 7 =
  26. 26.741 × 6 =
  27. 27.632 × 7 =
  28. 28.443 × 6 =
  29. 29.448 × 5 =
  30. 30.326 × 4 =
  31. 31.207 × 8 =
  32. 32.613 × 6 =
  33. 33.844 × 8 =
  34. 34.482 × 6 =
  35. 35.964 × 6 =
  36. 36.189 × 7 =
  37. 37.446 × 5 =
  38. 38.597 × 4 =
  39. 39.132 × 4 =
  40. 40.337 × 7 =

Answer key

  1. 5481
  2. 4739
  3. 6544
  4. 3088
  5. 4770
  6. 2976
  7. 4506
  8. 3036
  9. 2568
  10. 544
  11. 6633
  12. 1925
  13. 3479
  14. 495
  15. 1444
  16. 2916
  17. 3280
  18. 7328
  19. 2163
  20. 5936
  21. 3204
  22. 1128
  23. 1968
  24. 2007
  25. 924
  26. 4446
  27. 4424
  28. 2658
  29. 2240
  30. 1304
  31. 1656
  32. 3678
  33. 6752
  34. 2892
  35. 5784
  36. 1323
  37. 2230
  38. 2388
  39. 528
  40. 2359

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