7
8
9
10
甲
20.4
17.6
20.5
23.1
乙
18.9
21.7
22.8
21.2
①4.7﹣0.7×1.5﹣0.75
② ÷[( + )× ]
③25×4.9×4
④35×25×( )
⑤5600÷(7×25)
⑥13×(10+0.2)