题目内容

合理灵活的计算.
2
3
+
1
4
-
5
12
)÷
1
36
5.5×36+55×6.4[
7
8
-(
1
4
+
1
2
)]÷
1
5
3
5
-
1
3
)÷
2
3
×
7
8
(1)(
2
3
+
1
4
-
5
12
)÷
1
36

=(
2
3
+
1
4
-
5
12
)×36
=
2
3
×36+
1
4
×36-
5
12
×36,
=24+9-15,
=18;

(2)5.5×36+55×6.4,
=5.5×36+5.5×64,
=(36+64)×5.5,
=100×5.5,
=550;

(3)[
7
8
-(
1
4
+
1
2
)]÷
1
5

=[
7
8
-
6
8
1
5

=
1
8
×5,
=
5
8


(4)(
3
5
-
1
3
)÷
2
3
×
7
8

=
4
15
×
3
2
×
7
8

=
7
20
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