直接写得数． += -= += -=1-= += += -= +=【参考答案】

试题详情

直接写得数．

$\text{[math]}$ + $\text{[math]}$ =	$\text{[math]}$ - $\text{[math]}$ =	$\text{[math]}$ + $\text{[math]}$ =	$\text{[math]}$ - $\text{[math]}$ =	1- $\text{[math]}$ =
$\text{[math]}$ + $\text{[math]}$ =	$\text{[math]}$ + $\text{[math]}$ =	$\text{[math]}$ - $\text{[math]}$ =	$\text{[math]}$ + $\text{[math]}$ =

知识点

参考答案