题目内容

(2六六9?镇江)用递等式计算:
十681÷e2+1十
6.m×(2.1-e.6)-e.2
m
e2
×
e
m
+
1
m
×
m
e2

2-(
e
6
+
2
)÷
m
9

2
em
÷[
2
m
-(e-
7
e六
)].
(1)3788÷18+83
=307+83,
=350;

(8)7.5×(8.8-1.7)-1.8
=7.5×0.8-1.8,
=5.8-1.8,
=8;

(3)
5
18
×
1
5
+
8
5
×
5
18

=(
1
5
+
8
5
)×
5
18

=1×
5
18

=
5
18


(8)8-(
1
7
+
8
3
)÷
5
9

=8-
5
7
×
9
5

=8-1
1
8

=
1
8


(5)
8
15
÷[
8
5
-(1-
7
10
)].
=
8
15
÷[
8
5
-
3
10
],
=
8
15
÷
1
10

=
8
3
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