\"\" 

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The expression is  \"\"

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Place value chart for 2.2 and 3.8.

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\ \ \"\"

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line up the decimal points and draw a line below the numbers.

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Annex zero to align the numbers.\"\" \ \

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\"\"

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Next find the sum of the tenths digit.

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The sum of the tenths digit =\"\".

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\"\"

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\"\"

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Next find the sum of the ones digit.

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The sum of the ones digit =\"\".

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\"\"                       

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\"\"

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The sum is -6.

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