直接写得数． +0.625=1÷0.05= ×8.1=1÷ = ÷ = ﹣ =0.1÷10%=a﹣ a=

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$\text{[math]}$ +0.625=	1÷0.05=	$\text{[math]}$ ×8.1=	1÷ $\text{[math]}$ =
$\text{[math]}$ ÷ $\text{[math]}$ =	$\text{[math]}$ ﹣ $\text{[math]}$ =	0.1÷10%=	a﹣ $\text{[math]}$ a=

1. 直接写得数． +0.625=1÷0.05= ×8.1=1÷ = ÷ = ﹣ =0.1÷10%=a﹣ a=