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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 668 · 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. 1.303 × 9 =
  2. 2.898 × 3 =
  3. 3.555 × 7 =
  4. 4.941 × 7 =
  5. 5.661 × 8 =
  6. 6.621 × 5 =
  7. 7.418 × 4 =
  8. 8.117 × 8 =
  9. 9.173 × 3 =
  10. 10.895 × 5 =
  11. 11.852 × 8 =
  12. 12.463 × 6 =
  13. 13.807 × 4 =
  14. 14.126 × 9 =
  15. 15.153 × 4 =
  16. 16.591 × 8 =
  17. 17.988 × 5 =
  18. 18.491 × 9 =
  19. 19.252 × 4 =
  20. 20.315 × 4 =
  21. 21.868 × 7 =
  22. 22.547 × 4 =
  23. 23.889 × 3 =
  24. 24.534 × 5 =
  25. 25.252 × 6 =
  26. 26.173 × 5 =
  27. 27.491 × 8 =
  28. 28.759 × 9 =
  29. 29.509 × 8 =
  30. 30.651 × 7 =
  31. 31.931 × 7 =
  32. 32.839 × 7 =
  33. 33.202 × 8 =
  34. 34.738 × 8 =
  35. 35.431 × 6 =
  36. 36.901 × 4 =
  37. 37.681 × 6 =
  38. 38.269 × 3 =
  39. 39.667 × 8 =
  40. 40.401 × 4 =

Answer key

  1. 2727
  2. 2694
  3. 3885
  4. 6587
  5. 5288
  6. 3105
  7. 1672
  8. 936
  9. 519
  10. 4475
  11. 6816
  12. 2778
  13. 3228
  14. 1134
  15. 612
  16. 4728
  17. 4940
  18. 4419
  19. 1008
  20. 1260
  21. 6076
  22. 2188
  23. 2667
  24. 2670
  25. 1512
  26. 865
  27. 3928
  28. 6831
  29. 4072
  30. 4557
  31. 6517
  32. 5873
  33. 1616
  34. 5904
  35. 2586
  36. 3604
  37. 4086
  38. 807
  39. 5336
  40. 1604

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