分析:(1)先算乘法,再算減法;
(2)先算除法,再算加法;
(3)先同時(shí)運(yùn)算兩個(gè)小括號(hào)里面的減法和加法,再把括號(hào)外的除法變成乘法,運(yùn)用乘法結(jié)合律簡(jiǎn)算;
(4)按照從左到右的順序計(jì)算;
(5)先算小括號(hào)里面的加法,再算括號(hào)外的除法,最后算括號(hào)外的加法;
(6)先算小括號(hào)里面的除法,再算小括號(hào)里面的加法,然后算中括號(hào)里面的減法,最后算括號(hào)外的除法.
解答:解:(1)9080-35×26,
=9080-910,
=8170;
(2)17÷3.4+1.48,
=5+1.48,
=6.48;
(3)
÷(
-
)×(
+
),
=
÷
×
,
=
×(
×
),
=
×
,
=
;
(4)3÷
÷
÷4,
=9×
÷4,
=12÷4,
=3;
(5)(
+
)÷
+
,
=
×
+,
=
+
,
=
;
(6)10÷[
-(
÷
+
)],
=10÷[
-(
+
)],
=10÷[
-
],
=10÷
,
=81.
點(diǎn)評(píng):1、如果是同一級(jí)運(yùn)算,一般按從左往右依次進(jìn)行計(jì)算;2、如果既有加減、又有乘除法,先算乘除法、再算加減;3、如果有括號(hào),先算括號(hào)里面的.