递等式计算（能简算的要简算） × + × = × ÷ = ÷ + × = × + =368÷[1÷（2.1﹣2.09）]= ×99+ =

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$\text{[math]}$ × $\text{[math]}$ + $\text{[math]}$ × $\text{[math]}$ =	$\text{[math]}$ × $\text{[math]}$ ÷ $\text{[math]}$ =	$\text{[math]}$ ÷ $\text{[math]}$ + $\text{[math]}$ × $\text{[math]}$ =
$\text{[math]}$ × $\text{[math]}$ + $\text{[math]}$ =	368÷[1÷（2.1﹣2.09）]=	$\text{[math]}$ ×99+ $\text{[math]}$ =

1. 递等式计算（能简算的要简算） × + × = × ÷ = ÷ + × = × + =368÷[1÷（2.1﹣2.09）]= ×99+ =