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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 667 · 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. 1.336 × 3 =
  2. 2.817 × 8 =
  3. 3.462 × 5 =
  4. 4.473 × 3 =
  5. 5.402 × 4 =
  6. 6.156 × 5 =
  7. 7.759 × 8 =
  8. 8.915 × 7 =
  9. 9.157 × 9 =
  10. 10.761 × 3 =
  11. 11.854 × 9 =
  12. 12.121 × 3 =
  13. 13.199 × 6 =
  14. 14.635 × 4 =
  15. 15.677 × 5 =
  16. 16.968 × 6 =
  17. 17.849 × 7 =
  18. 18.765 × 7 =
  19. 19.905 × 4 =
  20. 20.237 × 4 =
  21. 21.714 × 3 =
  22. 22.663 × 3 =
  23. 23.747 × 8 =
  24. 24.588 × 4 =
  25. 25.931 × 8 =
  26. 26.696 × 7 =
  27. 27.757 × 7 =
  28. 28.411 × 5 =
  29. 29.914 × 4 =
  30. 30.149 × 9 =
  31. 31.681 × 3 =
  32. 32.333 × 6 =
  33. 33.129 × 6 =
  34. 34.152 × 8 =
  35. 35.226 × 5 =
  36. 36.382 × 3 =
  37. 37.378 × 8 =
  38. 38.568 × 4 =
  39. 39.941 × 7 =
  40. 40.915 × 8 =

Answer key

  1. 1008
  2. 6536
  3. 2310
  4. 1419
  5. 1608
  6. 780
  7. 6072
  8. 6405
  9. 1413
  10. 2283
  11. 7686
  12. 363
  13. 1194
  14. 2540
  15. 3385
  16. 5808
  17. 5943
  18. 5355
  19. 3620
  20. 948
  21. 2142
  22. 1989
  23. 5976
  24. 2352
  25. 7448
  26. 4872
  27. 5299
  28. 2055
  29. 3656
  30. 1341
  31. 2043
  32. 1998
  33. 774
  34. 1216
  35. 1130
  36. 1146
  37. 3024
  38. 2272
  39. 6587
  40. 7320

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