题目内容

计算.(能简算的要简算)
1
4
×
5
16
÷
15
8
8
9
÷[(
2
5
+
1
10
)×
4
3
]
2
23
÷6+
21
23
×
1
6
④(
1
3
-
1
4
+
1
6
)÷
1
12

1
4
×
5
16
÷
15
8

=
1
4
×
5
16
×
8
15

=
1
24


8
9
÷[(
2
5
+
1
10
)×
4
3
],
=
8
9
÷[
1
2
×
4
3
],
=
8
9
÷
2
3

=
4
3


2
23
÷6+
21
23
×
1
6

=
2
23
×
1
6
+
21
23
×
1
6

=(
2
23
+
21
23
)×
1
6

=1×
1
6

=
1
6


④(
1
3
-
1
4
+
1
6
)÷
1
12

=(
1
3
-
1
4
+
1
6
)×12,
=
1
3
×12-
1
4
×12+
1
6
×12,
=4-3+2,
=3.
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