简便计算:99%+91x(2⼀13-1⼀7)

2024-11-16 05:40:55
推荐回答(3个)
回答(1):

简便计算:
99%+91x(2/13-1/7)
=0.99+14-13
=1.99 .

回答(2):

99%+91x(2/13-1/7)
=99%+91×2/13-91×1/7
=99%+14-13
=1.99

回答(3):

99%+91x(2/13-1/7)
=0.99+14-13
=0.99+1
=1.99