66×64+36×64,观察分析发现这道题可以用乘法分配律逆运算,因为乘法分配律的规律就是αX(b+c)=ab+ac,所以原式变换为64×(66+36)=64×102,然后把102拆解为100+2,然后在用分配律,64×(100+2)=64×100+64×2=6400+128=6528。
这个问题可以这么计算,首先把36分解成34+2也就是让(66+34)乘以64再加上64乘以2也就是6400+128等于6528.
66×64+36×64
简便计算
66×64+36×64
=66x64+34x64+2x64
=(66+34)x64+128
=100x64+128
=6400+128
=6528
66×64+36×64
=(66+36)×64
=102×64
=(100+2)×64
=6400+128
=6528
解:66x64+36x64
=64x(64+36)
=64x100
=6400