口算下列各题。4.9×8.1=23.9÷8=8×125％=0.3×0.3÷0.3×0.3=(1- )×16= ×24÷ = =1÷

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4.9×8.1=	23.9÷8=	8×125％=	0.3×0.3÷0.3×0.3=
(1- $\text{[math]}$ )×16=	$\text{[math]}$ ×24÷ $\text{[math]}$ =	$\text{[math]}$ =	1÷ $\text{[math]}$ - $\text{[math]}$ ÷1=

1. 口算下列各题。4.9×8.1=23.9÷8=8×125％=0.3×0.3÷0.3×0.3=(1- )×16= ×24÷ = =1÷ - ÷1=