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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 150 · 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. 1.412 × 6 =
  2. 2.394 × 3 =
  3. 3.128 × 9 =
  4. 4.227 × 5 =
  5. 5.887 × 4 =
  6. 6.425 × 6 =
  7. 7.722 × 3 =
  8. 8.691 × 9 =
  9. 9.199 × 3 =
  10. 10.601 × 9 =
  11. 11.935 × 4 =
  12. 12.776 × 5 =
  13. 13.568 × 4 =
  14. 14.139 × 8 =
  15. 15.865 × 8 =
  16. 16.537 × 4 =
  17. 17.551 × 5 =
  18. 18.512 × 3 =
  19. 19.551 × 4 =
  20. 20.692 × 7 =
  21. 21.674 × 6 =
  22. 22.389 × 9 =
  23. 23.422 × 3 =
  24. 24.847 × 4 =
  25. 25.194 × 7 =
  26. 26.723 × 4 =
  27. 27.859 × 6 =
  28. 28.114 × 4 =
  29. 29.117 × 3 =
  30. 30.899 × 9 =
  31. 31.383 × 8 =
  32. 32.591 × 6 =
  33. 33.497 × 3 =
  34. 34.726 × 4 =
  35. 35.309 × 7 =
  36. 36.293 × 6 =
  37. 37.241 × 8 =
  38. 38.953 × 9 =
  39. 39.499 × 6 =
  40. 40.698 × 6 =

Answer key

  1. 2472
  2. 1182
  3. 1152
  4. 1135
  5. 3548
  6. 2550
  7. 2166
  8. 6219
  9. 597
  10. 5409
  11. 3740
  12. 3880
  13. 2272
  14. 1112
  15. 6920
  16. 2148
  17. 2755
  18. 1536
  19. 2204
  20. 4844
  21. 4044
  22. 3501
  23. 1266
  24. 3388
  25. 1358
  26. 2892
  27. 5154
  28. 456
  29. 351
  30. 8091
  31. 3064
  32. 3546
  33. 1491
  34. 2904
  35. 2163
  36. 1758
  37. 1928
  38. 8577
  39. 2994
  40. 4188

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