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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 214 · 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. 1.948 × 5 =
  2. 2.704 × 7 =
  3. 3.697 × 6 =
  4. 4.507 × 3 =
  5. 5.564 × 8 =
  6. 6.716 × 6 =
  7. 7.537 × 7 =
  8. 8.541 × 6 =
  9. 9.619 × 5 =
  10. 10.744 × 6 =
  11. 11.939 × 7 =
  12. 12.674 × 4 =
  13. 13.742 × 5 =
  14. 14.682 × 9 =
  15. 15.843 × 6 =
  16. 16.753 × 8 =
  17. 17.237 × 9 =
  18. 18.385 × 8 =
  19. 19.904 × 9 =
  20. 20.244 × 7 =
  21. 21.157 × 3 =
  22. 22.245 × 6 =
  23. 23.149 × 9 =
  24. 24.121 × 8 =
  25. 25.714 × 4 =
  26. 26.172 × 6 =
  27. 27.831 × 5 =
  28. 28.522 × 6 =
  29. 29.371 × 8 =
  30. 30.416 × 6 =
  31. 31.903 × 9 =
  32. 32.152 × 6 =
  33. 33.862 × 4 =
  34. 34.156 × 5 =
  35. 35.799 × 7 =
  36. 36.762 × 6 =
  37. 37.501 × 7 =
  38. 38.161 × 9 =
  39. 39.475 × 3 =
  40. 40.782 × 3 =

Answer key

  1. 4740
  2. 4928
  3. 4182
  4. 1521
  5. 4512
  6. 4296
  7. 3759
  8. 3246
  9. 3095
  10. 4464
  11. 6573
  12. 2696
  13. 3710
  14. 6138
  15. 5058
  16. 6024
  17. 2133
  18. 3080
  19. 8136
  20. 1708
  21. 471
  22. 1470
  23. 1341
  24. 968
  25. 2856
  26. 1032
  27. 4155
  28. 3132
  29. 2968
  30. 2496
  31. 8127
  32. 912
  33. 3448
  34. 780
  35. 5593
  36. 4572
  37. 3507
  38. 1449
  39. 1425
  40. 2346

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