解:(1)5180-705×6,
=5180-4230,
=950;
(2)24÷2.4-2.5×0.8,
=10-2,
=8;
(3)7-1÷8-
×7,
=7-
-
,
=7-(
+
),
=7-1,
=6;
(4)8
-3
×1
+1
,
=8
-6+
=2
+
,
=
;
(5)(5-1
)÷[(
+3.7)×
],
=3
÷(4×
),
=3
÷1,
=3
;
(6)(4.84÷4-0.01)×(1-
),
=(1.21-0.01)×(1-
),
=1.2×
,
=0.9;
(7)[5
+(3.6-2
)×1
]÷
,
=[5
+
×1
]÷
,
=[5
+
]÷
,
=7×
,
=
;
(8)[14.8+(3
-1.5)×1
]÷2
,
=[14.8+
×1
]÷2
,
=[14.8+2]÷2
,
=16.8×
,
=6.3.
分析:(1)先算乘法,再算減法;
(2)先同時(shí)運(yùn)算除法和乘法,最后算減法;
(3)先算除法,再根據(jù)減法的性質(zhì)簡(jiǎn)算;
(4)先算乘法和除法,再算減法,最后算加法;
(5)先同時(shí)運(yùn)算兩個(gè)小括號(hào)里面的減法和加法,再算中括號(hào)里面的乘法,最后算括號(hào)外的除法;
(6)先算小括號(hào)里面的除法,再同時(shí)運(yùn)了兩個(gè)小括號(hào)里面的減法,最后算括號(hào)外的乘法;
(7)先算小括號(hào)里面的減法,再算中括號(hào)里面的乘法,最后算括號(hào)外的加法;
(8)先算小括號(hào)里面的減法,再算中括號(hào)里面的乘法,然后算中括號(hào)里面的加法,最后算括號(hào)外的除法.
點(diǎn)評(píng):本題考查了四則混合運(yùn)算的計(jì)算順序,計(jì)算時(shí)要想看清楚能否運(yùn)用簡(jiǎn)算的方法,若不能就按照運(yùn)算順序一步步求解.