分析:(1)運(yùn)用加法的結(jié)合律進(jìn)行簡(jiǎn)算,
(2)運(yùn)用加法的交換律、結(jié)合律進(jìn)行簡(jiǎn)算,
(3)運(yùn)用加法的交換律、結(jié)合律和運(yùn)用減法的性質(zhì)進(jìn)行簡(jiǎn)算,
(4)去括號(hào),再從左向右就進(jìn)行計(jì)算,
(5)運(yùn)用加法的交換律、結(jié)合律和運(yùn)用減法的性質(zhì)進(jìn)行簡(jiǎn)算,
(6)運(yùn)用減法的性質(zhì)進(jìn)行簡(jiǎn)算,
(7)去括號(hào),先算加法,再算減法,
(8)去括號(hào),再根據(jù)算式的特點(diǎn)進(jìn)行計(jì)算.
解答:解:(1)
+
+
,
=
+(
+
),
=
+1,
=1
;
(2)
+++,
=(
+
)+(
+
),
=1+1,
=2;
(3)
+
+
-
,
=(
+
)+(
-
),
=1+0,
=1;
(4)
-(+),
=
-
-
,
=
-
,
=
;
(5)
-
+
-
,
=(
+
)-(
+
),
=1
-1,
=
;
(6)
6--,
=6-(
+
),
=6-1,
=5;
(7)
-(
-
),
=
-
+
,
=
+
-
,
=
-
,
=0;
(8)
+(+)-,
=
+
+
-
,
=(
+
)+(
-
),
=
+
,
=
.
點(diǎn)評(píng):本題考查了簡(jiǎn)單的四則混合運(yùn)算,關(guān)鍵是理清楚運(yùn)算的順序,然后根據(jù)運(yùn)算順序逐步求解即可.