Solve 3321 minus 145: Column Subtraction Practice

Video Solution

Solution Steps

00:00 Solve

00:03 Each time we consider a shortage of 2 digits, and then we put

00:09 1 less than 5

00:15 That means now instead of 1 we will have 11

00:20 Subtract the ones from the ones plus ten

00:23 Put in ones place

00:27 1 less than 4

00:31 Therefore we subtract 1 from hundreds, and add this sum to tens

00:36 That means now instead of 1 we will have 11

00:41 Subtract the tens from the tens plus ten

00:44 Put in tens place

00:48 Subtract hundreds from hundreds, and put in hundreds place

00:51 Put 0 in the missing digits

00:54 Subtract thousands from thousands, and put in thousands place

00:57 And this is the solution to the question

Step-by-Step Solution

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 $3176$ .