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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 208 · 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. 1.761 × 7 =
  2. 2.478 × 7 =
  3. 3.112 × 7 =
  4. 4.918 × 3 =
  5. 5.195 × 6 =
  6. 6.197 × 5 =
  7. 7.254 × 4 =
  8. 8.749 × 3 =
  9. 9.641 × 6 =
  10. 10.392 × 7 =
  11. 11.528 × 3 =
  12. 12.939 × 4 =
  13. 13.115 × 7 =
  14. 14.455 × 5 =
  15. 15.783 × 6 =
  16. 16.682 × 3 =
  17. 17.586 × 7 =
  18. 18.333 × 6 =
  19. 19.469 × 7 =
  20. 20.532 × 3 =
  21. 21.908 × 4 =
  22. 22.262 × 3 =
  23. 23.185 × 9 =
  24. 24.806 × 9 =
  25. 25.417 × 3 =
  26. 26.254 × 9 =
  27. 27.787 × 4 =
  28. 28.975 × 5 =
  29. 29.605 × 5 =
  30. 30.717 × 7 =
  31. 31.785 × 4 =
  32. 32.126 × 4 =
  33. 33.941 × 8 =
  34. 34.216 × 6 =
  35. 35.697 × 8 =
  36. 36.791 × 4 =
  37. 37.331 × 7 =
  38. 38.926 × 9 =
  39. 39.698 × 4 =
  40. 40.282 × 4 =

Answer key

  1. 5327
  2. 3346
  3. 784
  4. 2754
  5. 1170
  6. 985
  7. 1016
  8. 2247
  9. 3846
  10. 2744
  11. 1584
  12. 3756
  13. 805
  14. 2275
  15. 4698
  16. 2046
  17. 4102
  18. 1998
  19. 3283
  20. 1596
  21. 3632
  22. 786
  23. 1665
  24. 7254
  25. 1251
  26. 2286
  27. 3148
  28. 4875
  29. 3025
  30. 5019
  31. 3140
  32. 504
  33. 7528
  34. 1296
  35. 5576
  36. 3164
  37. 2317
  38. 8334
  39. 2792
  40. 1128

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