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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 267 · 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. 1.241 × 9 =
  2. 2.561 × 9 =
  3. 3.567 × 8 =
  4. 4.117 × 8 =
  5. 5.651 × 8 =
  6. 6.614 × 7 =
  7. 7.544 × 4 =
  8. 8.706 × 4 =
  9. 9.892 × 5 =
  10. 10.421 × 5 =
  11. 11.982 × 9 =
  12. 12.895 × 8 =
  13. 13.641 × 6 =
  14. 14.366 × 8 =
  15. 15.286 × 3 =
  16. 16.761 × 8 =
  17. 17.487 × 5 =
  18. 18.229 × 5 =
  19. 19.783 × 7 =
  20. 20.237 × 6 =
  21. 21.359 × 4 =
  22. 22.439 × 6 =
  23. 23.847 × 3 =
  24. 24.359 × 6 =
  25. 25.732 × 6 =
  26. 26.722 × 8 =
  27. 27.969 × 7 =
  28. 28.219 × 7 =
  29. 29.523 × 7 =
  30. 30.167 × 6 =
  31. 31.607 × 4 =
  32. 32.805 × 3 =
  33. 33.872 × 4 =
  34. 34.262 × 3 =
  35. 35.612 × 4 =
  36. 36.888 × 7 =
  37. 37.739 × 7 =
  38. 38.789 × 9 =
  39. 39.852 × 3 =
  40. 40.266 × 6 =

Answer key

  1. 2169
  2. 5049
  3. 4536
  4. 936
  5. 5208
  6. 4298
  7. 2176
  8. 2824
  9. 4460
  10. 2105
  11. 8838
  12. 7160
  13. 3846
  14. 2928
  15. 858
  16. 6088
  17. 2435
  18. 1145
  19. 5481
  20. 1422
  21. 1436
  22. 2634
  23. 2541
  24. 2154
  25. 4392
  26. 5776
  27. 6783
  28. 1533
  29. 3661
  30. 1002
  31. 2428
  32. 2415
  33. 3488
  34. 786
  35. 2448
  36. 6216
  37. 5173
  38. 7101
  39. 2556
  40. 1596

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