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To solve this problem of subtracting from , we'll follow these steps:
Putting it all together, we have:
Therefore, the solution to the problem is , which corresponds to choice 2.
138
\( \begin{aligned} &105 \\ -& \\ &~~~~3 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
You must borrow step-by-step through each place value! Think of it like borrowing money - you can't skip your friend and go directly to their parent. First borrow from hundreds to tens, then from tens to ones.
When you borrow from a zero, it becomes 10 (but you reduce the next column by 1). In this problem, when we borrowed from hundreds, the 0 in tens became 10, and the 5 in hundreds became 4.
Use addition to check! Add your answer to the number you subtracted. If you get the original number, you're right: ✓
Take it slow! Work from right to left, one column at a time. Write down what each digit becomes after borrowing. Practice with easier problems first, like .
Yes! You could think of it as counting up: How much do you add to 367 to get 505? Count: 367 + 3 = 370, 370 + 30 = 400, 400 + 105 = 505. Total: 3 + 30 + 105 = 138.
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