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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 796 · 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. 1.561 × 9 =
  2. 2.928 × 5 =
  3. 3.287 × 4 =
  4. 4.815 × 6 =
  5. 5.542 × 9 =
  6. 6.341 × 9 =
  7. 7.435 × 9 =
  8. 8.451 × 8 =
  9. 9.446 × 8 =
  10. 10.968 × 8 =
  11. 11.873 × 6 =
  12. 12.757 × 4 =
  13. 13.541 × 3 =
  14. 14.734 × 4 =
  15. 15.298 × 3 =
  16. 16.285 × 6 =
  17. 17.228 × 5 =
  18. 18.329 × 5 =
  19. 19.195 × 3 =
  20. 20.128 × 4 =
  21. 21.188 × 5 =
  22. 22.368 × 4 =
  23. 23.314 × 7 =
  24. 24.712 × 7 =
  25. 25.782 × 8 =
  26. 26.705 × 3 =
  27. 27.793 × 5 =
  28. 28.894 × 7 =
  29. 29.588 × 4 =
  30. 30.242 × 9 =
  31. 31.863 × 5 =
  32. 32.437 × 4 =
  33. 33.181 × 8 =
  34. 34.857 × 5 =
  35. 35.358 × 6 =
  36. 36.754 × 9 =
  37. 37.693 × 4 =
  38. 38.224 × 3 =
  39. 39.673 × 4 =
  40. 40.844 × 3 =

Answer key

  1. 5049
  2. 4640
  3. 1148
  4. 4890
  5. 4878
  6. 3069
  7. 3915
  8. 3608
  9. 3568
  10. 7744
  11. 5238
  12. 3028
  13. 1623
  14. 2936
  15. 894
  16. 1710
  17. 1140
  18. 1645
  19. 585
  20. 512
  21. 940
  22. 1472
  23. 2198
  24. 4984
  25. 6256
  26. 2115
  27. 3965
  28. 6258
  29. 2352
  30. 2178
  31. 4315
  32. 1748
  33. 1448
  34. 4285
  35. 2148
  36. 6786
  37. 2772
  38. 672
  39. 2692
  40. 2532

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