直接写得数。1.5+5=4-0.9=4÷0.8=100×1％=25×0.7×4= × =0÷ = ÷ =1- =2-2÷3=

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1.5+5=	4-0.9=	4÷0.8=	100×1％=	25×0.7×4=
$\text{[math]}$ × $\text{[math]}$ =	0÷ $\text{[math]}$ =	$\text{[math]}$ ÷ $\text{[math]}$ =	1- $\text{[math]}$ =	2-2÷3=

1. 直接写得数。1.5+5=4-0.9=4÷0.8=100×1％=25×0.7×4= × =0÷ = ÷ =1- =2-2÷3=