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Step-by-step addition of 63 + 17 using number decomposition to simplify mental math.

Visual math breakdown of adding 63 and 17 using place value decomposition, showing 60+10=70 and 3+7=10, resulting in 80.

Visual math breakdown of adding 63 and 17 using place value decomposition, showing 60+10=70 and 3+7=10, resulting in 80.

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