Question

-4²+

64

25

÷0．83+

75

2

×|(-

2

15

)2-

2

25

|．

Answer 1

原式=-16+

64

25

÷

64

125

+

75

2

×|

4

225

-

2

25

|
=-16+

64

25

×

125

64

+

75

2

×

2

25

×

7

9

=-16+5+

21

9

=-8

2

3

．