题目内容

计算题
(9.18×
1
3
-2
1
2
11
15

7.8÷[32×(1-
5
8
)+3.6]

6.5×8+4
1
2
×8-8

12×(
1
4
+
1
6
-
1
3
)
①(9.18×
1
3
-2
1
2
)÷
11
15

=(3.06-2.5)×
15
11

=0.56×
15
11

=
14
25
×
15
11

=
42
55


②7.8÷[32×(1-
5
8
)+3.6],
=7.8÷[32×
3
8
+3.6],
=7.8÷15.6,
=0.5;

③6.5×8+4
1
2
×8-8,
=8×(6.5+4.5-1),
=8×10,
=80;

④12×(
1
4
+
1
6
-
1
3
),
=12×
1
4
+12×
1
6
-12×
1
3

=3+2-4,
=1.
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