问题 解答题 竖式计算. 0.68-0.137=0.32×2.04=0.9÷1.1=(得数保留2位小数) 答案 ①0.68-0.137=0.543;②0.32×2.04=0.6528;③0.9÷1.1≈0.82.故答案为:0.543,0.6528,0.82.