64×79+35×79+39递等式计算等于多少
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64×79+35×79+39递等式计算等于多少64×79+35×79+39递等式计算等于多少64×79+35×79+39递等式计算等于多少64×79+35×79+79=(64+35+1)×79=100
64×79+35×79+39递等式计算等于多少
64×79+35×79+39递等式计算等于多少
64×79+35×79+39递等式计算等于多少
64×79+35×79+79
=(64+35+1)×79
=100×79
=7900
估计题目中的79错打成39了.
64×79+35×79+39
=64×79+35×79+79-40
=79X（64+35+1）-40
=79X100-40
=7900-40
=7860
64×79+35×79+39
=64×79+35×79+79-40
=(64+35+1)×79-40
=100×79-40
=7900-40
=7860