5.4+6.3+5.4+5.4+3.6+6.3等于多少?

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5.4+6.3+5.4+5.4+3.6+6.3等于多少?
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5.4+6.3+5.4+5.4+3.6+6.3等于多少?
5.4+6.3+5.4+5.4+3.6+6.3等于多少?

5.4+6.3+5.4+5.4+3.6+6.3等于多少?
5.4+6.3+5.4+5.4+3.6+6.3 = 32.4

5.4+6.3+5.4+5.4+3.6+6.3 =5.4+3.6+(5.4+5.4+6.3+6.3) =9+23.4 =32.4