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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 331 · 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. 1.365 × 8 =
  2. 2.424 × 9 =
  3. 3.935 × 6 =
  4. 4.121 × 5 =
  5. 5.331 × 9 =
  6. 6.888 × 7 =
  7. 7.511 × 8 =
  8. 8.277 × 9 =
  9. 9.734 × 8 =
  10. 10.156 × 4 =
  11. 11.962 × 6 =
  12. 12.485 × 8 =
  13. 13.547 × 9 =
  14. 14.571 × 4 =
  15. 15.206 × 5 =
  16. 16.741 × 7 =
  17. 17.762 × 8 =
  18. 18.503 × 8 =
  19. 19.224 × 3 =
  20. 20.822 × 6 =
  21. 21.251 × 5 =
  22. 22.356 × 8 =
  23. 23.321 × 9 =
  24. 24.832 × 4 =
  25. 25.164 × 9 =
  26. 26.651 × 8 =
  27. 27.128 × 4 =
  28. 28.202 × 4 =
  29. 29.221 × 9 =
  30. 30.325 × 6 =
  31. 31.548 × 5 =
  32. 32.639 × 8 =
  33. 33.132 × 7 =
  34. 34.332 × 7 =
  35. 35.283 × 8 =
  36. 36.744 × 8 =
  37. 37.369 × 7 =
  38. 38.317 × 3 =
  39. 39.682 × 6 =
  40. 40.415 × 9 =

Answer key

  1. 2920
  2. 3816
  3. 5610
  4. 605
  5. 2979
  6. 6216
  7. 4088
  8. 2493
  9. 5872
  10. 624
  11. 5772
  12. 3880
  13. 4923
  14. 2284
  15. 1030
  16. 5187
  17. 6096
  18. 4024
  19. 672
  20. 4932
  21. 1255
  22. 2848
  23. 2889
  24. 3328
  25. 1476
  26. 5208
  27. 512
  28. 808
  29. 1989
  30. 1950
  31. 2740
  32. 5112
  33. 924
  34. 2324
  35. 2264
  36. 5952
  37. 2583
  38. 951
  39. 4092
  40. 3735

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