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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 511 · 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. 1.332 × 5 =
  2. 2.561 × 9 =
  3. 3.531 × 9 =
  4. 4.145 × 8 =
  5. 5.881 × 7 =
  6. 6.237 × 6 =
  7. 7.232 × 5 =
  8. 8.783 × 4 =
  9. 9.761 × 9 =
  10. 10.423 × 8 =
  11. 11.224 × 9 =
  12. 12.872 × 7 =
  13. 13.629 × 4 =
  14. 14.871 × 5 =
  15. 15.941 × 7 =
  16. 16.243 × 8 =
  17. 17.921 × 3 =
  18. 18.591 × 7 =
  19. 19.939 × 8 =
  20. 20.223 × 4 =
  21. 21.372 × 8 =
  22. 22.309 × 9 =
  23. 23.818 × 6 =
  24. 24.463 × 8 =
  25. 25.439 × 7 =
  26. 26.691 × 9 =
  27. 27.925 × 4 =
  28. 28.671 × 9 =
  29. 29.721 × 7 =
  30. 30.503 × 8 =
  31. 31.684 × 9 =
  32. 32.781 × 9 =
  33. 33.895 × 5 =
  34. 34.915 × 9 =
  35. 35.411 × 3 =
  36. 36.349 × 9 =
  37. 37.151 × 3 =
  38. 38.662 × 9 =
  39. 39.238 × 4 =
  40. 40.597 × 9 =

Answer key

  1. 1660
  2. 5049
  3. 4779
  4. 1160
  5. 6167
  6. 1422
  7. 1160
  8. 3132
  9. 6849
  10. 3384
  11. 2016
  12. 6104
  13. 2516
  14. 4355
  15. 6587
  16. 1944
  17. 2763
  18. 4137
  19. 7512
  20. 892
  21. 2976
  22. 2781
  23. 4908
  24. 3704
  25. 3073
  26. 6219
  27. 3700
  28. 6039
  29. 5047
  30. 4024
  31. 6156
  32. 7029
  33. 4475
  34. 8235
  35. 1233
  36. 3141
  37. 453
  38. 5958
  39. 952
  40. 5373

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