98×68⼀69等于多少简便运算?

98×68/69等于多少简便运算?
2024-11-16 09:33:43
推荐回答(3个)
回答(1):

=98*(69-1)/69
=98*69/69-98/69
=98-1-(98-69)/69
=97-29/69
=

回答(2):

98x68/69
=100x68/69-2x68/69
=(6800-136)/69
=6664/69

回答(3):

=98x(1-1/69)=98-98/69=96*29/69