Subtract: 10.06 − 1.09.
The correct answer and explanation is:
To subtract 10.06 − 1.09, follow the standard subtraction process for decimal numbers.
Step 1: Line up the numbers by the decimal point.
10.06
- 1.09
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Step 2: Start by subtracting the digits in the hundredths place (the two digits to the right of the decimal).
Here, you have 6 − 9. Since 6 is smaller than 9, you need to borrow from the tenths place.
- The 0 in the tenths place becomes 9 after borrowing from the ones place.
- The 6 becomes 16 after borrowing from the tenths place.
Now you can subtract:
16 − 9 = 7.
Step 3: Move to the tenths place. After borrowing, you have 9 − 0 = 9.
Step 4: Finally, subtract the ones place. You are left with 10 − 1 = 9.
So, the final result is:
10.06
- 1.09
--------
8.97
The correct answer is 8.97.
Explanation:
When subtracting decimal numbers, it’s important to line up the decimal points correctly and subtract place by place, starting from the rightmost digit. Borrowing is necessary when the top number in a place value is smaller than the bottom number. In this case, borrowing was required at the hundredths place, which allowed for a successful subtraction of the digits.