3×+÷3 36×25%+36×
5×=
3×=
9×=
×8=
×6=
×25=
×9=
① ×÷
②×39×
③ ÷×
④ ÷÷
①4.7﹣0.7×1.5﹣0.75
② ÷[( + )× ]
③25×4.9×4
④35×25×( )
⑤5600÷(7×25)
⑥13×(10+0.2)