简便运算:102*98

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 13:51:03
简便运算:102*98

简便运算:102*98
简便运算:102*98

简便运算:102*98
102*98
=(100+2)(100-2)
=100^2-2^2
=10000-4
=9996

102*98
=(100+2)(100-2)
=100^2-2^2
=10000-4
=9996

102×98
=(100+2) ×98
=100×98+2×98
=9800+196
=9996

102×98
=(100+2)×(100—2)
=100×100-2×2
=10000-4
=9996
选我哦!