分析:(1)先把兩個(gè)負(fù)數(shù)相加,然后再與正數(shù)相加;
(2)利用乘法的分配律進(jìn)行計(jì)算;
(3)先確定符號(hào),再把待分?jǐn)?shù)化為假分?jǐn)?shù)和除法運(yùn)算化成乘法運(yùn)算,然后約分即可;
(4)先進(jìn)行開方運(yùn)算,然后進(jìn)行加減運(yùn)算;
(5)先進(jìn)行乘方運(yùn)算,再進(jìn)行除法和乘法運(yùn)算,然后進(jìn)行減法運(yùn)算;
(6)先進(jìn)行乘方和開方運(yùn)算,然后進(jìn)行加減運(yùn)算.
解答:解:(1)原式=-16+11
=-5;
(2)原式=
×(-60)+
×(-60)-
×(-60)
=-45-35+70
=-10;
(3)原式=18×
×
×
=
;
(4)原式=-2+
-2
=-
;
(5)原式=32÷16-(-
)×(-4)
=2-
=
;
(6)原式=5+(-
+
)+8
=13-
=
.
點(diǎn)評(píng):本題考查了實(shí)數(shù)的運(yùn)算:實(shí)數(shù)的運(yùn)算和在有理數(shù)范圍內(nèi)一樣,值得一提的是,實(shí)數(shù)既可以進(jìn)行加、減、乘、除、乘方運(yùn)算,又可以進(jìn)行開方運(yùn)算,其中正實(shí)數(shù)可以開平方.