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The expression is
Place value chart for 2.2 and 3.8.
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line up the decimal points and draw a line below the numbers.
\Annex zero to align the numbers. \ \
Next find the sum of the tenths digit.
\The sum of the tenths digit =.
Next find the sum of the ones digit.
\The sum of the ones digit =.
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The sum is -6.
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