分析:(1)根據(jù)有理數(shù)的加法運(yùn)算法則進(jìn)行計(jì)算即可得解;
(2)先寫成省略加號(hào)的形式,然后利用根據(jù)有理數(shù)的加法運(yùn)算法則進(jìn)行計(jì)算即可得解;
(3)根據(jù)有理數(shù)的乘法運(yùn)算法則進(jìn)行計(jì)算即可得解;
(4)先通分,再根據(jù)有理數(shù)的加減運(yùn)算法則進(jìn)行計(jì)算即可得解;
(5)把小數(shù)化為假分?jǐn)?shù),然后根據(jù)有理數(shù)的乘法運(yùn)算法則進(jìn)行計(jì)算即可得解;
(6)先寫成省略加號(hào)的形式,然后利用根據(jù)有理數(shù)的加法運(yùn)算法則進(jìn)行計(jì)算即可得解;
(7)把除法轉(zhuǎn)化為乘法,再根據(jù)有理數(shù)的乘法運(yùn)算法則進(jìn)行計(jì)算即可得解;
(8)把帶分?jǐn)?shù)化為假分?jǐn)?shù),除法轉(zhuǎn)為乘法,然后根據(jù)有理數(shù)的乘法運(yùn)算法則進(jìn)行計(jì)算即可得解;
(9)先算乘方,再算乘除,然后根據(jù)有理數(shù)的減法運(yùn)算法則進(jìn)行計(jì)算即可得解;
(10)利用乘法分配律進(jìn)行計(jì)算即可得解.
解答:解:(1)26+(-14)+(-16)+82,
=26+82+(-14)+(-16),
=108-30,
=78;
(2)0-(+8)+(-2.7)-(+5),
=-8-2.7-5,
=-15.7;
(3)(-8)×(-25)×(-0.02),
=-8×25×0.02,
=-4;
(4)-
+
+
-
,
=-
+
+
-
,
=
,
=
,
=
;
(5)(-
)×1.25×(-8),
=
×
×8,
=
;
(6)4.7-(-8.9)-7.5+(-6),
=4.7+8.9-7.5-6,
=13.6-13.5,
=0.1;
(7)(-12)÷4×(-6)÷2,
=(-12)×
×(-6)×
,
=12×
×6×
,
=9;
(8)-64÷3
×
,
=-64×
×
,
=-
;
(9)-2
2×(-
)+8÷(-2)
2,
=-4×(-
)+8×
,
=2+2,
=4;
(10)(
+
-
)×(-12),
=
×(-12)+
×(-12)-
×(-12),
=-5-8+9,
=-13+9,
=-4.
點(diǎn)評(píng):本題考查的是有理數(shù)的運(yùn)算能力.注意:要正確掌握運(yùn)算順序,即乘方運(yùn)算(和以后學(xué)習(xí)的開(kāi)方運(yùn)算)叫做三級(jí)運(yùn)算;乘法和除法叫做二級(jí)運(yùn)算;加法和減法叫做一級(jí)運(yùn)算.在混合運(yùn)算中要特別注意運(yùn)算順序:先三級(jí),后二級(jí),再一級(jí);有括號(hào)的先算括號(hào)里面的;同級(jí)運(yùn)算按從左到右的順序.