0.4×0.3= 2.5×0.6= 8.8×0.1= 0.24×0.5= 1.25×8= 0.8×50= 1.7×0.03= 0.35×0.4=
①(++)×30
②7.2×99+7.2
③(+)×7+
④×153﹣0.6×53
⑤×+÷5+
⑥×[﹣(﹣)]
①12.7﹣3.6﹣5.4
②
③
④