⑴0.15×23×20 ⑵19.1+6.8×40÷1.6
⑶1.92÷80÷0.125 ⑷2.56÷(1.58+2.7×0.6)
(2.1+0.7)÷0.35
7.52÷0.4÷2.5
9.55+6.3÷7×0.5
①2.4÷×
②(+﹣)×36
③×99
④29.3﹣12.6﹣7.4
⑤5.9×8.5﹣49×0.85
⑥×[6÷(﹣)]