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To solve this problem, we'll execute a vertical subtraction step-by-step:
Step 1: Align the numbers:
Step 2: Start subtracting from the rightmost digit:
Subtract the units position: . We need to borrow because 5 is less than 6:
Borrow from the tens place (0 becomes 9 after borrowing), the units digit becomes 15.
Now calculate .
Next, the tens position: . Again, we need to borrow:
Borrow from the hundreds place (7 becomes 6 after borrowing), tens digit becomes 10.
Calculate .
Next, the hundreds position: .
Next, calculate the thousands position: .
Finally, subtract the ten-thousands position: . Need to borrow from the hundred-thousands place (1 becomes 0, and ten-thousands become 10):
Now, calculate .
Step 3: Write down the result from each step:
The subtraction gives us the result: .
Therefore, the solution to the problem is .
81529
\( \begin{aligned} &105 \\ -& \\ &~~~~3 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
You can't subtract a larger digit from a smaller one! Borrowing lets you 'borrow' 10 from the next place value, making the calculation possible. It's like trading a 1 bills.
When borrowing from 0, you need to keep going left until you find a digit you can borrow from. The 0 becomes 9 after borrowing, and you continue the chain of borrowing to the right.
Add your answer to the number you subtracted. If you get the original larger number, you're correct! For example: 81529 + 20176 = 101705 ✓
Borrowing works because of place value. When you borrow 1 from the tens place, you're actually borrowing 10 ones. It's the same total value, just regrouped!
Double-check each borrowing step carefully. Make sure you reduced each borrowed-from digit by 1 and added 10 to the borrowing digit. Practice with smaller numbers first!
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