1.用简便方法计算下题:(1)150-95-48 = = =

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1.用简便方法计算下题:(1)150-95-48===1.用简便方法计算下题:(1)150-95-48===1.用简便方法计算下题:(1)150-95-48===150-95-48=150-100+5

1.用简便方法计算下题:(1)150-95-48 = = =
1.用简便方法计算下题:(1)150-95-48 = = =

1.用简便方法计算下题:(1)150-95-48 = = =
150-95-48
=150-100+5-50+2
=5+2
=7