99%×99 6.8÷8÷125% 25%×125%×128
人气:454 ℃ 时间:2020-05-25 01:05:29
解答
99%*99=0.99*(100-1)=99-0.99=98.01
6.8÷8÷125%=6.8÷(8×1.25)=6.8÷10=0.68
25%×125%×128=0.25×4×1.25×8×4=1×10×4=40
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