直接写出得数。＋ = × = ＋ =

1. (2021五下·惠阳期中) 直接写出得数。
$\text{[math]}$ ＋ $\text{[math]}$ = $\text{[math]}$ × $\text{[math]}$ = $\text{[math]}$ ＋ $\text{[math]}$ = $\text{[math]}$ × $\text{[math]}$ = $\text{[math]}$ × $\text{[math]}$ =

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