(1)6760÷13+17×25,
=520+425,
=945;
(2)4.82-5.2÷0.8×0.6,
=4.82-6.5×0.6,
=4.82-3.9,
=0.92;
(3)(
?7 12
)÷1 2
,11 24
=(
?7 12
)×1 2
,24 11
=
×7 12
-24 11
×1 2
,24 11
=
?14 11
,12 11
=
;2 11
(4)(
+1 3
)÷(2?1 2
),2 3
=
÷15 6
,1 3
=
;5 8
(5)(
?5 6
×5 8
)÷4 5
,1 3
=(
?5 6
)÷1 2
,1 3
=
÷1 3
,1 3
=1;
(6)
×[8 15
÷(5 6
?7 9
)],1 3
=