口算 ×2.8 = － × = ÷ =

1. (2019六上·山东期中) 口算
$\text{[math]}$ ×2.8 = $\text{[math]}$ － $\text{[math]}$ × $\text{[math]}$ = $\text{[math]}$ ÷ $\text{[math]}$ = $\text{[math]}$ ÷3= $\text{[math]}$ =
120× $\text{[math]}$ = 18× $\text{[math]}$ × $\text{[math]}$ = 1÷ $\text{[math]}$ = $\text{[math]}$ ÷ $\text{[math]}$ = 0÷ $\text{[math]}$ =

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1. (2019六上·山东期中) 口算 ×2.8 = － × = ÷ = ÷3= =120× = 18× × = 1÷ = ÷ = 0÷ =