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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 792 · 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. 1.491 × 3 =
  2. 2.542 × 8 =
  3. 3.243 × 7 =
  4. 4.285 × 9 =
  5. 5.261 × 7 =
  6. 6.715 × 9 =
  7. 7.706 × 4 =
  8. 8.817 × 6 =
  9. 9.731 × 3 =
  10. 10.964 × 9 =
  11. 11.285 × 7 =
  12. 12.114 × 8 =
  13. 13.886 × 9 =
  14. 14.311 × 4 =
  15. 15.435 × 8 =
  16. 16.716 × 3 =
  17. 17.493 × 4 =
  18. 18.114 × 3 =
  19. 19.938 × 6 =
  20. 20.564 × 9 =
  21. 21.315 × 6 =
  22. 22.478 × 5 =
  23. 23.696 × 8 =
  24. 24.159 × 8 =
  25. 25.501 × 4 =
  26. 26.252 × 8 =
  27. 27.971 × 8 =
  28. 28.276 × 6 =
  29. 29.411 × 7 =
  30. 30.472 × 8 =
  31. 31.883 × 6 =
  32. 32.305 × 4 =
  33. 33.804 × 7 =
  34. 34.638 × 5 =
  35. 35.985 × 4 =
  36. 36.552 × 8 =
  37. 37.591 × 3 =
  38. 38.574 × 5 =
  39. 39.293 × 3 =
  40. 40.324 × 5 =

Answer key

  1. 1473
  2. 4336
  3. 1701
  4. 2565
  5. 1827
  6. 6435
  7. 2824
  8. 4902
  9. 2193
  10. 8676
  11. 1995
  12. 912
  13. 7974
  14. 1244
  15. 3480
  16. 2148
  17. 1972
  18. 342
  19. 5628
  20. 5076
  21. 1890
  22. 2390
  23. 5568
  24. 1272
  25. 2004
  26. 2016
  27. 7768
  28. 1656
  29. 2877
  30. 3776
  31. 5298
  32. 1220
  33. 5628
  34. 3190
  35. 3940
  36. 4416
  37. 1773
  38. 2870
  39. 879
  40. 1620

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