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To solve the subtraction problem , we will follow a simple step-by-step process:
Step 1: Align the decimal points of both numbers. Write directly above such that the decimal points are lined up vertically.
Step 2: Perform the subtraction from right to left. Start with the tenths place:
Subtract (from 5.3) from (from 7.9) in the tenths place, resulting in .
Step 3: Move to the units place:
Subtract (from 5.3) from (from 7.9) in the units place, resulting in .
After subtracting, we find the result of the operation is .
Therefore, the solution to the problem is.
2.6
Choose the correct writing form:
Decimal points show where the ones place ends and the tenths place begins. When you line them up, you're making sure you subtract tenths from tenths and ones from ones - just like you do with regular subtraction!
Add zeros to the right of the shorter decimal! For example, if subtracting 7.9 - 5.32, write 7.9 as 7.90 so both numbers have the same decimal places.
It's better to subtract from right to left (tenths first, then ones) because that's how subtraction naturally works. This way, if you need to borrow, you're prepared!
Your answer's decimal point should be directly below the decimal points in your problem. In , the answer has its decimal point in the same position.
That's perfectly fine! Some decimal subtractions result in whole numbers. Just remember to show your work with proper decimal alignment even if the final answer doesn't have decimal places.
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