26×153-26×50-26×3
=26×(153-50-3)
=26×(103-3)
=26×100
=2600
分析:
乘法结合律
26*(153-50-3)=26*100=2600
26×153-26×50-26×3
=26x(153-50-3)
=26x100
=2600
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26×153-26×50-26×3简便计算
=26x(153-50-3)
=26x100
=2600
。。
26×153-26×50-26×3简便计算
26×153-26×50-26×3
=26×(153-50-3)
=26×100
=2600