13×14×(
3
14
+
7
13
-
16
3
-2
2
5
)÷16÷17
分析:根據(jù)數(shù)字特點(diǎn),運(yùn)用乘法分配律以及除法的性質(zhì)簡(jiǎn)算.
解答:解:13×14×(
3
14
+
7
13
-
16
3
-2
2
5
)÷16÷17,
=13×14×(
3
14
+
7
13
-
116
15
)÷16÷17,
=(13×14×
3
14
+13×14×
7
13
-13×14×
116
15
)÷16÷17,
=(39+98-182×
116
15
)×
1
16×17
,
=(137-182×
116
15
)×
1
272
,
=
137
272
-182×
116
15
×
1
272

=
137×15
15×272
-
182×116
15×272
,
=
2055
15×272
-
21112
15×272
,
=-
19057
4080
點(diǎn)評(píng):解決這類問(wèn)題,注意分析式中數(shù)據(jù),靈活簡(jiǎn)算.
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