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用简便方法计算:57×98×125×8936×(512−16)14÷(3−513−813)(56−23)÷109.

题目详情
用简便方法计算:
5
7
×
9
8
×1
2
5
×
8
9
36×(
5
12
1
6
)
1
4
÷(3−
5
13
8
13
)
5
6
2
3
10
9
5
7
×
9
8
×1
2
5
×
8
9
36×(
5
12
1
6
)
1
4
÷(3−
5
13
8
13
)
5
6
2
3
10
9
5
7
×
9
8
×1
2
5
×
8
9
36×(
5
12
1
6
)
1
4
÷(3−
5
13
8
13
)
5
6
2
3
10
9
5
7
×
9
8
×1
2
5
×
8
9
5
7
×
9
8
×1
2
5
×
8
9
5
7
5577
9
8
9988
2
5
2255
8
9
889936×(
5
12
1
6
)
5
12
1
6
)
5
12
551212
1
6
1166
1
4
÷(3−
5
13
8
13
)
1
4
÷(3−
5
13
8
13
)
1
4
1144(3−
5
13
8
13
)
5
13
551313
8
13
881313(
5
6
2
3
10
9
5
6
2
3
10
9
5
6
5566
2
3
2233
10
9
10
9
101099
▼优质解答
答案和解析
(1)
5
7
×
9
8
×1
2
5
×
8
9

=(
5
7
×
7
5
)×(
9
8
×
8
9
),
=1×1,
=1;

(2)36×(
5
12
-
1
6
),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
5
7
555777×
9
8
×1
2
5
×
8
9

=(
5
7
×
7
5
)×(
9
8
×
8
9
),
=1×1,
=1;

(2)36×(
5
12
-
1
6
),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
9
8
999888×1
2
5
×
8
9

=(
5
7
×
7
5
)×(
9
8
×
8
9
),
=1×1,
=1;

(2)36×(
5
12
-
1
6
),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
2
5
222555×
8
9

=(
5
7
×
7
5
)×(
9
8
×
8
9
),
=1×1,
=1;

(2)36×(
5
12
-
1
6
),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
8
9
888999,
=(
5
7
×
7
5
)×(
9
8
×
8
9
),
=1×1,
=1;

(2)36×(
5
12
-
1
6
),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
5
7
555777×
7
5
)×(
9
8
×
8
9
),
=1×1,
=1;

(2)36×(
5
12
-
1
6
),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
7
5
777555)×(
9
8
×
8
9
),
=1×1,
=1;

(2)36×(
5
12
-
1
6
),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
9
8
999888×
8
9
),
=1×1,
=1;

(2)36×(
5
12
-
1
6
),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
8
9
888999),
=1×1,
=1;

(2)36×(
5
12
-
1
6
),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
5
12
555121212-
1
6
),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
1
6
111666),
=36×
5
12
-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
5
12
555121212-36×
1
6

=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
1
6
111666,
=15-6,
=9.

(3)
1
4
÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
1
4
111444÷(3−
5
13
8
13
),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
(3−
5
13
555131313−
8
13
888131313),
=
1
4
÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
1
4
111444÷[3-(
5
13
+
8
13
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
5
13
555131313+
8
13
888131313)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
1
4
111444÷[3-1],
=
1
4
÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
1
4
111444÷2,
=
1
8


(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
1
8
111888.

(4)(
5
6
2
3
10
9

=
1
6
×
9
10

=
3
20
5
6
555666−
2
3
222333)÷
10
9

=
1
6
×
9
10

=
3
20
10
9
101010999,
=
1
6
×
9
10

=
3
20
1
6
111666×
9
10

=
3
20
9
10
999101010,
=
3
20
3
20
333202020.