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简便计算:(1)91617×17(2)−|−115|×|−0.25|−(−514)×(+115)

题目详情
简便计算:(1)9
16
17
×17
(2)−|−
11
5
|×|−0.25|−(−5
1
4
)×(+
11
5
)
9
16
17
×17
(2)−|−
11
5
|×|−0.25|−(−5
1
4
)×(+
11
5
)
16
17
16161717
−|−
11
5
|×|−0.25|−(−5
1
4
)×(+
11
5
)
11
5
111155
1
4
1144
11
5
111155
▼优质解答
答案和解析
(1)原式=(10−
1
17
)×17,
=10×17−
1
17
×17,
=169;

(2)原式=
11
5
×
1
4
+
11
5
×
21
4

=
11
5
×(−
1
4
+
21
4
),
=11.
(10−
1
17
111171717)×17,
=10×17−
1
17
×17,
=169;

(2)原式=
11
5
×
1
4
+
11
5
×
21
4

=
11
5
×(−
1
4
+
21
4
),
=11.
10×17−
1
17
111171717×17,
=169;

(2)原式=
11
5
×
1
4
+
11
5
×
21
4

=
11
5
×(−
1
4
+
21
4
),
=11.
11
5
111111555×
1
4
111444+
11
5
111111555×
21
4
212121444,
=
11
5
×(−
1
4
+
21
4
),
=11.
11
5
111111555×(−
1
4
111444+
21
4
212121444),
=11.