口算．×=×12=÷=20÷=16×75%=+=3﹣=÷=×17=×÷×=【参考答案】

试题详情

口算．

$\text{[math]}$ × $\text{[math]}$ =	$\text{[math]}$ ×12=	$\text{[math]}$ ÷ $\text{[math]}$ =	20÷ $\text{[math]}$ =	16×75%=
$\text{[math]}$ + $\text{[math]}$ =	3﹣ $\text{[math]}$ =	$\text{[math]}$ ÷ $\text{[math]}$ =	$\text{[math]}$ ×17=	$\text{[math]}$ × $\text{[math]}$ ÷ $\text{[math]}$ × $\text{[math]}$ =

知识点

参考答案