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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 330 · 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. 1.382 × 8 =
  2. 2.289 × 6 =
  3. 3.353 × 3 =
  4. 4.684 × 5 =
  5. 5.538 × 6 =
  6. 6.427 × 6 =
  7. 7.874 × 7 =
  8. 8.148 × 6 =
  9. 9.197 × 3 =
  10. 10.733 × 9 =
  11. 11.243 × 5 =
  12. 12.413 × 6 =
  13. 13.442 × 6 =
  14. 14.346 × 7 =
  15. 15.693 × 3 =
  16. 16.422 × 7 =
  17. 17.672 × 3 =
  18. 18.793 × 4 =
  19. 19.341 × 5 =
  20. 20.757 × 6 =
  21. 21.605 × 3 =
  22. 22.325 × 4 =
  23. 23.869 × 8 =
  24. 24.484 × 3 =
  25. 25.601 × 9 =
  26. 26.462 × 9 =
  27. 27.255 × 7 =
  28. 28.261 × 3 =
  29. 29.938 × 5 =
  30. 30.712 × 6 =
  31. 31.548 × 7 =
  32. 32.264 × 8 =
  33. 33.343 × 9 =
  34. 34.623 × 5 =
  35. 35.445 × 3 =
  36. 36.359 × 3 =
  37. 37.682 × 8 =
  38. 38.339 × 3 =
  39. 39.762 × 5 =
  40. 40.704 × 3 =

Answer key

  1. 3056
  2. 1734
  3. 1059
  4. 3420
  5. 3228
  6. 2562
  7. 6118
  8. 888
  9. 591
  10. 6597
  11. 1215
  12. 2478
  13. 2652
  14. 2422
  15. 2079
  16. 2954
  17. 2016
  18. 3172
  19. 1705
  20. 4542
  21. 1815
  22. 1300
  23. 6952
  24. 1452
  25. 5409
  26. 4158
  27. 1785
  28. 783
  29. 4690
  30. 4272
  31. 3836
  32. 2112
  33. 3087
  34. 3115
  35. 1335
  36. 1077
  37. 5456
  38. 1017
  39. 3810
  40. 2112

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