题目内容

直接写出得数.
3
10
-
3
10
÷6
99×
97
98
1
2
+
1
3
)÷
3
5
-
17
18
9
10
-(
1
4
+
7
20
)÷
3
4
(1)6÷
3
10
-
3
10
÷6,
=20-
1
20

=19
19
20


(2)99×
97
98

=(98+1)×
97
98

=98×
97
98
+1×
97
98

=97+
97
98

=97
97
98


(3)(
1
2
+
1
3
)÷
3
5
-
17
18

=
5
6
÷
3
5
-
17
18

=
25
18
-
17
18

=
4
9


(4)
9
10
-(
1
4
+
7
20
)÷
3
4

=
9
10
-
3
5
÷
3
4

=
9
10
-
4
5

=
1
10
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网