How do I get box 52 and box 53 to equal box 21 without getting an error warning?

[rarinobu]

Going into Edit shows box 50 and Box 32 not equalling box 21. Why?

[TurboTaxAniqua]

For the error on the T3 slip not balancing box 52+53 to equal box 21A, trying to enter the sum of 52+53 into box 53 (deleting 52) will fix the problem.

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