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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 320 · 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. 1.407 × 7 =
  2. 2.409 × 5 =
  3. 3.326 × 6 =
  4. 4.971 × 6 =
  5. 5.425 × 3 =
  6. 6.541 × 3 =
  7. 7.515 × 6 =
  8. 8.621 × 6 =
  9. 9.717 × 9 =
  10. 10.408 × 4 =
  11. 11.209 × 3 =
  12. 12.261 × 9 =
  13. 13.989 × 3 =
  14. 14.757 × 6 =
  15. 15.413 × 7 =
  16. 16.823 × 3 =
  17. 17.764 × 7 =
  18. 18.561 × 9 =
  19. 19.444 × 4 =
  20. 20.985 × 3 =
  21. 21.135 × 3 =
  22. 22.204 × 3 =
  23. 23.918 × 4 =
  24. 24.519 × 6 =
  25. 25.675 × 8 =
  26. 26.449 × 4 =
  27. 27.331 × 4 =
  28. 28.735 × 9 =
  29. 29.529 × 7 =
  30. 30.434 × 9 =
  31. 31.151 × 4 =
  32. 32.647 × 8 =
  33. 33.314 × 9 =
  34. 34.336 × 4 =
  35. 35.136 × 4 =
  36. 36.353 × 9 =
  37. 37.211 × 5 =
  38. 38.508 × 5 =
  39. 39.892 × 4 =
  40. 40.841 × 8 =

Answer key

  1. 2849
  2. 2045
  3. 1956
  4. 5826
  5. 1275
  6. 1623
  7. 3090
  8. 3726
  9. 6453
  10. 1632
  11. 627
  12. 2349
  13. 2967
  14. 4542
  15. 2891
  16. 2469
  17. 5348
  18. 5049
  19. 1776
  20. 2955
  21. 405
  22. 612
  23. 3672
  24. 3114
  25. 5400
  26. 1796
  27. 1324
  28. 6615
  29. 3703
  30. 3906
  31. 604
  32. 5176
  33. 2826
  34. 1344
  35. 544
  36. 3177
  37. 1055
  38. 2540
  39. 3568
  40. 6728

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