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To solve this problem, we'll follow these steps:
Let's work through each step:
Step 1: Write the numbers vertically, aligning them by place value:
Step 2: Begin with the units column:
We can't subtract 8 from 7, so we need to regroup. We take 1 ten from the tens place, converting the 7 into 17.
Step 3: After regrouping:
Step 4: Move to the tens column:
No regrouping needed here.
Step 5: Move to the hundreds column:
We can't subtract 7 from 4, so we again regroup. We take 1 thousand from the thousands column, making the hundreds digit 14.
Step 6: After regrouping:
Step 7: Finally, the thousands column:
We now have each column solved.
Therefore, the result is 5709.
The solution to the problem is .
5709
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Because subtraction has a specific direction! You must subtract the bottom number from the top number in each column. If you switch them around, you'll get a completely different (wrong) answer.
When borrowing from zero, you need to keep going left until you find a non-zero digit. Change that digit to 9, and all the zeros in between become 9s too!
You need to regroup whenever the top digit is smaller than the bottom digit in any column. Look at each column from right to left before you start subtracting.
Yes! You can also estimate first: 9417 is about 9400, and 3708 is about 3700. So 9400 - 3700 = 5700. Your exact answer should be close to this estimate.
Don't worry! Cross out your work cleanly and start that column over. It's better to restart one column than to get the whole problem wrong. Always double-check your regrouping before moving to the next column.
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