①(164+36÷4)×35
②[460-(85+30)]÷23
③14×205
④125×48×25
⑤7200÷160÷5
⑥9999+999+99+9+4
1kg30g+680g 10t-8t350kg
1.6×50= 6.3÷0.1= 1﹣= -×=