解:96×
-36÷
+
×40,
=96×
-36×
+
×40,
=(96-36+40)×
,
=100×
,
=80;
÷[(
-
)×2],
=
÷[(
)×2],
=
÷[
2],
=
÷
,
=1;
×25%+
×
,
=(25%+
)×
,
=(
)×
,
=1×
,
=
;
+
+
-
,
=(
)+(
),
=1+
,
=
;
×
+
÷
,
=
×
+
,
=(
)×
,
=1×
,
=
;
(
-
)-(
-
),
=
-
-
+
,
=(
)-(
),
=
-1,
=
.
分析:96×
-36÷
+
×40,此題通過變形后,利用乘法分配律的逆運(yùn)算簡(jiǎn)算;
÷[(
-
)×2],按運(yùn)算順序進(jìn)行計(jì)算,先算小括號(hào)內(nèi)的,再算中括號(hào)內(nèi)的,最后算括號(hào)外的;
×25%+
×
,把25%化成分?jǐn)?shù),用乘法分配律的逆運(yùn)算簡(jiǎn)算;
+
+
-
,運(yùn)用加法交換律和結(jié)合律簡(jiǎn)算;
×
+
÷
,把除法改為乘法后,利用乘法分配律的逆運(yùn)算簡(jiǎn)算;
(
-
)-(
-
),先利用減法的性質(zhì)去括號(hào),然后用加法結(jié)合律簡(jiǎn)算.
點(diǎn)評(píng):此題考查了學(xué)生對(duì)四則混合運(yùn)算順序的掌握情況,以及運(yùn)用運(yùn)算定律靈活簡(jiǎn)算的能力.