①4.7﹣0.7×1.5﹣0.75
② ÷[( + )× ]
③25×4.9×4
④35×25×( )
⑤5600÷(7×25)
⑥13×(10+0.2)
0.56÷0.8= = = =
5×( )= 30×= 0.53= 3﹣=