(1)0.125×0.25×8×4
=(0.25×4)×(0.125×8)
=1×1
=1;
(2)54×(
-5 6
)2 9
=54×
-54×5 6
2 9
=45-12
=33;
(3)
×13+3 5
÷3 5
1 13
=
×13+3 5
×133 5
=
×(13+13)3 5
=
×263 5
=
;78 5
(4)8.05-0.75-
1 4
=8.05-0.75-0.25
=8.05-(0.75+0.25)
=8.05-1
=7.05.