找規律6.25 2.5 1()()0.64 7 找規律 6.25 2.5 1()()0.64 7 3.5 1.75()()0.21875

找規律6.25 2.5 1()()0.64 7 找規律 6.25 2.5 1()()0.64 7 3.5 1.75()()0.21875

0.4 0.16
0.875 0.4375