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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 99 · 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. 1.951 × 7 =
  2. 2.937 × 6 =
  3. 3.645 × 3 =
  4. 4.747 × 4 =
  5. 5.268 × 8 =
  6. 6.964 × 8 =
  7. 7.865 × 3 =
  8. 8.162 × 3 =
  9. 9.954 × 6 =
  10. 10.326 × 3 =
  11. 11.908 × 5 =
  12. 12.765 × 7 =
  13. 13.615 × 4 =
  14. 14.223 × 3 =
  15. 15.658 × 5 =
  16. 16.123 × 7 =
  17. 17.235 × 3 =
  18. 18.616 × 3 =
  19. 19.207 × 9 =
  20. 20.568 × 7 =
  21. 21.975 × 4 =
  22. 22.562 × 3 =
  23. 23.604 × 4 =
  24. 24.971 × 6 =
  25. 25.557 × 9 =
  26. 26.731 × 3 =
  27. 27.731 × 5 =
  28. 28.552 × 9 =
  29. 29.526 × 7 =
  30. 30.752 × 9 =
  31. 31.832 × 8 =
  32. 32.721 × 7 =
  33. 33.518 × 7 =
  34. 34.272 × 6 =
  35. 35.384 × 7 =
  36. 36.212 × 6 =
  37. 37.638 × 6 =
  38. 38.791 × 8 =
  39. 39.148 × 6 =
  40. 40.917 × 8 =

Answer key

  1. 6657
  2. 5622
  3. 1935
  4. 2988
  5. 2144
  6. 7712
  7. 2595
  8. 486
  9. 5724
  10. 978
  11. 4540
  12. 5355
  13. 2460
  14. 669
  15. 3290
  16. 861
  17. 705
  18. 1848
  19. 1863
  20. 3976
  21. 3900
  22. 1686
  23. 2416
  24. 5826
  25. 5013
  26. 2193
  27. 3655
  28. 4968
  29. 3682
  30. 6768
  31. 6656
  32. 5047
  33. 3626
  34. 1632
  35. 2688
  36. 1272
  37. 3828
  38. 6328
  39. 888
  40. 7336

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