The expression is
Place value chart for 7.1 and 6.5.
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\Line up the decimal points and draw a line below the numbers.
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First find the sum of the tenths digit.
\The sum of the tenths digit .
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Next find the sum of the ones digit.
\The sum of the ones digit .
The sum is 13, so carry the tens digit to the next column on the left.
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The sum is .