口算． 6.4﹣3.32= × = + =2.5×0.9×0.4=9.6÷0.6=0.3×0.4=48×12.5%= ×5.6=2÷2%= ﹣ =

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1. (2016·吉安模拟) 口算． 6.4﹣3.32= × = + =2.5×0.9×0.4=9.6÷0.6=0.3×0.4=48×12.5%= ×5.6=2÷2%= ﹣ =