试题:
计算下面各题.

42÷(
6
5
÷
3
7
1
2
-
3
8
)÷
3
4
3
7
×
2
3
+
3
7
÷3
12×(
7
5
÷
3
10
8
9
×7+
1
9
×7
1
9
÷9×
1
9

答案:

我来补答
(1)42÷(
6
5
÷
3
7
),
=42÷
14
5

=15;

(2)(
1
2
-
3
8
)÷
3
4

=
1
8
÷
3
4

=
1
6


(3)
3
7
×
2
3
+
3
7
÷3,
=
3
7
×(
2
3
+
1
3
),
=
3
7
×1,
=
3
7


(4)12×(
7
5
÷
3
10
),
=12×
14
3

=56;

(5)
8
9
×7+
1
9
×7,
=(
8
9
+
1
9
)×7,
=1×7,
=7;

(6)9×
1
9
÷9×
1
9

=1÷9×
1
9

=
1
9
×
1
9

=
1
81
 
 
展开全文阅读
剩余:2000
这些题目你会做吗?