简便计算过程如下
27×53+27×22+75×78
=27×(53+22)+75×78
=27×75+75×78
=75×(27+78)
=75×105
=75×(100+5)
=75×100+75×5
=7500+375
=7875
望采纳
你的题目应该是那写错了,但我就按你的给出简便算法
27×53+27×22+75×78
=27×(53+22)+75x78
=27x75+75x78
=75x(27+78)
=75x105
=7875
望采纳,谢谢
27×53+27×22+75×78
=27×(53+22)+75×78
=27×75+75×78
=75×(27+78)
=75×100
=7500
=27×(53+22)+75×78
=27×75+75×78
=75×(27+78)
=75×105
=75×(100+5)
=7500+375
=7875
27x53+27x22+75x78
=27x(53+22)+75x78
=27x75+75x78
=75x(27+78)
=75x105
=75x(100+5)
=75×100+75x5
=7500+375
=7875