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$\"\"$

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The statement is “ $\"\"$ ”

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$\"\"$ (Commutative property of addition: $\"\"$ )

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$\"\"$ (Add: 13+20 = 33)

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$\"\"$ (Associative property of addition: $\"\"$ )

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$\"\"$ (Subtract: $\"\"$ )

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$\"\"$ (Subtract: $\"\"$ )

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$\"\"$

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The value of the expression is 3.

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