1.86÷0.971.86 8.42×1.018.42
3.6÷0.436÷4 12.3×0.9912.3÷0.99
①5.33333 ②0.4444… ③0.090909…
④3.1415926… ⑤ ⑥
135+398= 0.14×50= 3﹣2÷7=
48×12.5%= 1.25×9×8= ﹣ =
7× ÷7× = ÷ =