(1)(0.125×8-0.5)×4,
=0.125×8×4-0.5×4,
=4-2,
=2;
(2)(
1
3 +
1
2 )÷
3
5 -
17
18 ,
=
5
6 ÷
3
5 -
17
18 ,
=
25
18 -
17
18 ,
=
4
9 ;
(3)907+907×9-900,
=907×(1+9)-900,
=907×10-900,
=9070-900,
=8170;
(4)9÷[
5
6 +(
5
8 -
1
3 )],
=9÷[
5
6 +
7
24 ],
=9÷
9
8 ,
=8.