2018年五年级数学及答案:计算(2)
网络资源
2018-08-10 13:19:06
答案与解析:
=(100+99+98-97-96-95)+……+(10+9+8-7-6-5)+(4+3+2-1) =9+9+……+9+8 =9×16+8 =152
答案与解析:
=(100+99+98-97-96-95)+……+(10+9+8-7-6-5)+(4+3+2-1) =9+9+……+9+8 =9×16+8 =152