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102×27简便计算

2754 解: 27×102 =27×(100+2) =27×100+27×2 =2700+54 =2754

102x27-54 =100x27+2x27-54 =2700+54-54 =2700

102×27 =(100+2)×27 =100×27+2×27 =2700+54 =2754 解析:两个因数相乘,求简便运算,思路是看下因数是否可以凑成两个数相加或相减,且相加减的数应该是尾数为0的整数。 如题,102可以拆分成100和2相加。

原式等于 (100+2)×27=2754 ~回答完毕~ ~结果仅供参考~ ~\(^o^)/~祝学习进步~~~

102×36 =(100+2)×36 =100×36+2×36 =3600+72 =3672

102×210 =(100+2)×210 =100×210+2×210 =21000+420 =21420

102×0.27 =(100+2)×0.27 =100×0.27+2×0.27 =27+0.54 =27.54

用简便方法计算27×102 27×102 =27*100+27*2 =2700+54 =2754

=(100+2)*0.27 =100*0.27+2*0.27 =27+0.54 =27.54

1、解析:将102拆分成100+2,然后根据乘法分配律进行计算。 102×99 =(100+2)×99 =100×99+2×99 =9900+198 =10098 2、解析:将99写成100-1的形式,然后根据乘法分配律进行计算。 102×99 =102×(100-1) =102×100-102×1 =10200-102 =10098 此题主...

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