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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 228 · 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. 1.189 × 5 =
  2. 2.905 × 8 =
  3. 3.789 × 9 =
  4. 4.612 × 7 =
  5. 5.454 × 9 =
  6. 6.871 × 6 =
  7. 7.671 × 7 =
  8. 8.337 × 6 =
  9. 9.816 × 4 =
  10. 10.975 × 8 =
  11. 11.936 × 7 =
  12. 12.491 × 9 =
  13. 13.122 × 8 =
  14. 14.491 × 3 =
  15. 15.291 × 5 =
  16. 16.229 × 5 =
  17. 17.436 × 5 =
  18. 18.135 × 7 =
  19. 19.536 × 6 =
  20. 20.778 × 6 =
  21. 21.731 × 9 =
  22. 22.412 × 4 =
  23. 23.661 × 7 =
  24. 24.907 × 4 =
  25. 25.773 × 3 =
  26. 26.543 × 9 =
  27. 27.769 × 4 =
  28. 28.433 × 7 =
  29. 29.684 × 6 =
  30. 30.132 × 7 =
  31. 31.645 × 7 =
  32. 32.254 × 4 =
  33. 33.362 × 9 =
  34. 34.621 × 7 =
  35. 35.543 × 3 =
  36. 36.459 × 9 =
  37. 37.514 × 5 =
  38. 38.346 × 4 =
  39. 39.212 × 8 =
  40. 40.131 × 9 =

Answer key

  1. 945
  2. 7240
  3. 7101
  4. 4284
  5. 4086
  6. 5226
  7. 4697
  8. 2022
  9. 3264
  10. 7800
  11. 6552
  12. 4419
  13. 976
  14. 1473
  15. 1455
  16. 1145
  17. 2180
  18. 945
  19. 3216
  20. 4668
  21. 6579
  22. 1648
  23. 4627
  24. 3628
  25. 2319
  26. 4887
  27. 3076
  28. 3031
  29. 4104
  30. 924
  31. 4515
  32. 1016
  33. 3258
  34. 4347
  35. 1629
  36. 4131
  37. 2570
  38. 1384
  39. 1696
  40. 1179

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