8.25+[2.85×（3

2

5

-10.8×

2

9

÷1

1

14

）]，
=8.25+[2.85×（3

2

5

-10.8×

2

9

÷

15

14

）]，
=8.25+[2.85×（3

2

5

-

12

5

×

14

15

）]，
=8.25+[2.85×（3

2

5

-

4

5

×

14

5

）]，
=8.25+[2.85×（3.4-

56

25

）]，
=8.25+[2.85×（3.4-2.24）]，
=8.25+[2.85×1.16]，
=8.25+3.306，
=11.556．