Solve 3321 minus 145: Column Subtraction Practice

$\begin{aligned} &3321 \\ -& \\ &~~145 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

To solve the problem $3321 - 145$, we need to conduct vertical subtraction step by step. Let's proceed through each digit from right to left:

• Units Place:
  Current digits: 1 (from 3321) and 5 (from 145).
  We need to subtract 5 from 1, which requires borrowing as 1 is less than 5.
  1: Borrow from tens place (2 becomes 1), making this 11.
  Now calculate: $11 - 5 = 6$.
• Tens Place:
  Current digits: 1 (left after borrowing from 2) and 4 (from 145).
  We need to subtract 4 from 1, which means we borrow as 1 is less than 4.
  21: Borrow from hundreds place (3 becomes 2), making this 11.
  Then calculate: $11 - 4 = 7$.
• Hundreds Place:
  Current digits: 2 (after borrowing from 3) and 1 (from 145).
  Now calculate: $2 - 1 = 1$.
• Thousands Place:
  Current digits: 3 (minuend) and no digit in subtrahend at this place.
  So, the result is unchanged: $3 - 0 = 3$.

By following these step-by-step calculations, the result is $3321 - 145 = 3176$.

Therefore, the final difference is $3176$.