直接写得数 10× = × = &nb

1. (2019六上·灵宝期中) 直接写得数
10× $\text{[math]}$ = $\text{[math]}$ × $\text{[math]}$ = $\text{[math]}$ × $\text{[math]}$ = $\text{[math]}$ ÷ $\text{[math]}$ =

$\text{[math]}$ ÷ $\text{[math]}$ = $\text{[math]}$ × $\text{[math]}$ = 28× $\text{[math]}$ = $\text{[math]}$ ÷ $\text{[math]}$ =