23+46+69+92+115+138怎么计算简单
问题描述：
23+46+69+92+115+138怎么计算简单
=23+23X2+23x3+23x4+23x4+23X5+23X6
=23x(1+2+3+4+5+6)
=23x21
=483
可以吗
答
23+46+69+92+115+138
=20+3+50-4+70-1+90+2+110+5+140-2
=20+50+70+90+110+140+3-4-1+2+5-2
=140+200+140+3
=483
23+46+69+92+115+138
=23+23X2+23x3+23x4+23x4+23X5+23X6
=23x(1+2+3+4+5+6)
=23x21
=23×(20+1)
=23×20+23
=460+23
=483
当然可以,并且这个是最简单的!
还是楼主厉害啊!