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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 583 · 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. 1.749 × 5 =
  2. 2.528 × 9 =
  3. 3.912 × 8 =
  4. 4.874 × 6 =
  5. 5.562 × 7 =
  6. 6.785 × 5 =
  7. 7.795 × 8 =
  8. 8.657 × 7 =
  9. 9.313 × 3 =
  10. 10.284 × 7 =
  11. 11.572 × 8 =
  12. 12.343 × 7 =
  13. 13.251 × 5 =
  14. 14.195 × 5 =
  15. 15.153 × 3 =
  16. 16.897 × 7 =
  17. 17.391 × 9 =
  18. 18.888 × 8 =
  19. 19.129 × 5 =
  20. 20.311 × 3 =
  21. 21.895 × 4 =
  22. 22.305 × 9 =
  23. 23.371 × 6 =
  24. 24.511 × 4 =
  25. 25.969 × 6 =
  26. 26.228 × 7 =
  27. 27.267 × 5 =
  28. 28.686 × 3 =
  29. 29.137 × 5 =
  30. 30.931 × 9 =
  31. 31.302 × 4 =
  32. 32.634 × 3 =
  33. 33.112 × 6 =
  34. 34.791 × 7 =
  35. 35.258 × 4 =
  36. 36.905 × 5 =
  37. 37.281 × 9 =
  38. 38.633 × 8 =
  39. 39.247 × 7 =
  40. 40.427 × 9 =

Answer key

  1. 3745
  2. 4752
  3. 7296
  4. 5244
  5. 3934
  6. 3925
  7. 6360
  8. 4599
  9. 939
  10. 1988
  11. 4576
  12. 2401
  13. 1255
  14. 975
  15. 459
  16. 6279
  17. 3519
  18. 7104
  19. 645
  20. 933
  21. 3580
  22. 2745
  23. 2226
  24. 2044
  25. 5814
  26. 1596
  27. 1335
  28. 2058
  29. 685
  30. 8379
  31. 1208
  32. 1902
  33. 672
  34. 5537
  35. 1032
  36. 4525
  37. 2529
  38. 5064
  39. 1729
  40. 3843

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