口算÷=2.1×=100﹣11.9=3﹣=0.875﹣=+=1﹣÷=+×=0.36+0.2=÷3×÷3=【参考答案】

试题详情

口算

$\text{[math]}$ ÷ $\text{[math]}$ =	2.1× $\text{[math]}$ =	100﹣11.9=	3﹣ $\text{[math]}$ =	0.875﹣ $\text{[math]}$ =
$\text{[math]}$ + $\text{[math]}$ =	1﹣ $\text{[math]}$ ÷ $\text{[math]}$ =	$\text{[math]}$ + $\text{[math]}$ × $\text{[math]}$ =	0.36+0.2=	$\text{[math]}$ ÷3× $\text{[math]}$ ÷3=

知识点

参考答案