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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 31 · 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. 1.332 × 9 =
  2. 2.316 × 9 =
  3. 3.151 × 4 =
  4. 4.963 × 7 =
  5. 5.327 × 7 =
  6. 6.659 × 5 =
  7. 7.264 × 4 =
  8. 8.937 × 3 =
  9. 9.968 × 9 =
  10. 10.446 × 9 =
  11. 11.407 × 7 =
  12. 12.631 × 9 =
  13. 13.234 × 5 =
  14. 14.796 × 7 =
  15. 15.752 × 4 =
  16. 16.404 × 7 =
  17. 17.594 × 6 =
  18. 18.623 × 5 =
  19. 19.887 × 3 =
  20. 20.446 × 5 =
  21. 21.983 × 4 =
  22. 22.555 × 6 =
  23. 23.491 × 9 =
  24. 24.405 × 5 =
  25. 25.301 × 3 =
  26. 26.441 × 5 =
  27. 27.286 × 6 =
  28. 28.451 × 8 =
  29. 29.311 × 9 =
  30. 30.882 × 3 =
  31. 31.381 × 3 =
  32. 32.571 × 9 =
  33. 33.167 × 3 =
  34. 34.707 × 3 =
  35. 35.841 × 5 =
  36. 36.949 × 7 =
  37. 37.805 × 4 =
  38. 38.364 × 9 =
  39. 39.836 × 5 =
  40. 40.849 × 3 =

Answer key

  1. 2988
  2. 2844
  3. 604
  4. 6741
  5. 2289
  6. 3295
  7. 1056
  8. 2811
  9. 8712
  10. 4014
  11. 2849
  12. 5679
  13. 1170
  14. 5572
  15. 3008
  16. 2828
  17. 3564
  18. 3115
  19. 2661
  20. 2230
  21. 3932
  22. 3330
  23. 4419
  24. 2025
  25. 903
  26. 2205
  27. 1716
  28. 3608
  29. 2799
  30. 2646
  31. 1143
  32. 5139
  33. 501
  34. 2121
  35. 4205
  36. 6643
  37. 3220
  38. 3276
  39. 4180
  40. 2547

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