(1)(
3
8 +
1
12 )×24,
=24×
3
8 +
1
12 ×24,
=9+2,
=11;
(2)1÷ [(
1
3 +
1
2 )÷
5
12 ] ,
=1÷(
5
6 ÷
5
12 ),
=1÷2,
=
1
2 ;
(3)12.5-
3
8 -0.625,
=12.5-(0.375+0.625),
=12.5-1,
=11.5;
(4)25×125×32,
=25×125×8×4,
=(25×4)×(125×8),
=100×1000,
=100000.
(1)(
3
8 +
1
12 )×24,
=24×
3
8 +
1
12 ×24,
=9+2,
=11;
(2)1÷ [(
1
3 +
1
2 )÷
5
12 ] ,
=1÷(
5
6 ÷
5
12 ),
=1÷2,
=
1
2 ;
(3)12.5-
3
8 -0.625,
=12.5-(0.375+0.625),
=12.5-1,
=11.5;
(4)25×125×32,
=25×125×8×4,
=(25×4)×(125×8),
=100×1000,
=100000.