题目内容

用递等式计算. (能简算的要简算)
3
5
×(
5
12
÷
3
4
5
6
+
7
12
÷
1
2
3.7×99+3.7
3
7
+
5
11
+
4
7
+
6
11
360÷15+2.5×16
2
3
÷〔1-(
1
3
-
1
4
)〕
(1)
3
5
×(
5
12
÷
3
4
),
=
3
5
×
5
9

=
1
3


(2)
5
6
+
7
12
÷
1
2

=
5
6
+
7
6

=2;

(3)3.7×99+3.7,
=3.7×(99+1),
=3.7×100,
=370;

(4)
3
7
+
5
11
+
4
7
+
6
11

=(
3
7
+
4
7
)+(
5
11
+
6
11
),
=1+1,
=2;

(5)360÷15+2.5×16,
=24+40,
=64;

(6)
2
3
÷〔1-(
1
3
-
1
4
)〕,
=
2
3
÷〔1-
1
12
〕,
=
2
3
÷
11
12

=
8
11
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