直接写出得数。 + = + = 1- =

1. (2019五下·渝中期末) 直接写出得数。
$\text{[math]}$ + $\text{[math]}$ = $\text{[math]}$ + $\text{[math]}$ = 1- $\text{[math]}$ = $\text{[math]}$ - $\text{[math]}$ = $\text{[math]}$ + $\text{[math]}$ + $\text{[math]}$ =

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

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