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To solve this problem, we'll follow these steps:
Step 1: Set up the numbers for vertical subtraction.
Step 2: Perform subtraction starting from the rightmost digit (units place).
Step 3: Apply regrouping whenever the top digit is smaller than the digit below.
Now, let's work through each step:
Step 1: Write the numbers in vertical format aligning by place value:
Step 2: Subtract the digits in the units place:. Since 2 is smaller than 5, we need to regroup.
Regrouping: Borrow 10 from the tens place, making 2 become 12. The 8 in the tens place decreases by 1 to 7.
Subtract in the units place: .
Step 3: Move to the tens place: Now subtract .
Finally, subtract in the hundreds place: As there’s no digit to subtract from 4, it remains .
Therefore, after performing the subtraction, the result is:
Thus, the solution to the problem is , which corresponds to choice 2.
Therefore, the solution to the problem is .
417
\( \begin{aligned} &105 \\ -& \\ &~~~~3 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
Because you'd be ignoring place value! When the top digit is smaller, you must borrow from the next column. The 2 becomes 12, and you subtract 12 - 5 = 7.
The tens digit decreases by 1 because you borrowed 10 from it. In this problem, the 8 becomes 7, so you calculate 7 - 6 = 1 in the tens place.
Look at each column from right to left. Whenever the top digit is smaller than the bottom digit, you need to borrow from the column to the left.
Yes! You can also estimate: 482 is close to 480, and 65 is close to 70. So 480 - 70 = 410, which is very close to our answer of 417.
You'll need to borrow from further left! Keep moving left until you find a non-zero digit, then work your way back, turning zeros into 9s as you borrow.
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