下面各题怎样计算简便就怎样算．
158+36+42+264 19×27+190×5+19×23 957﹣（158+457）
301×99 600÷12÷5 （125×99+125）×16．
下面各题怎样计算简便就怎样算．
158+36+42+264 19×27+190×5+19×23 957﹣（158+457）
301×99 600÷12÷5 （125×99+125）×16．
=②
=③
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= ⑥
=⑦
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= ⑩
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= 1﹣
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= 14÷
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×
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= 6×
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= 9×
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= 1
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