算巧巧-口算天天练
班级：____________
姓名：____________
用时：____________
得分：____________
2
7
-
1
7
=
2
3
-
1
3
=
2
7
+
4
7
=
3
5
+
3
8
=
1
3
+
2
3
=
3
6
-
1
6
=
2
3
-
1
3
=
3
4
-
2
4
=
2
3
-
1
2
=
2
3
+
2
8
=
7
8
+
1
8
=
2
4
-
1
4
=
2
6
+
1
6
=
2
9
-
1
9
=
1
2
+
1
6
=
2
2
-
1
2
=
2
4
-
1
4
=
2
3
-
2
5
=
3
7
+
4
7
=
3
5
+
1
6
=
2
7
+
1
2
=
3
6
-
4
5
=
4
5
+
1
5
=
2
3
-
1
3
=
2
8
-
2
5
=
3
7
+
2
7
=
1
2
+
1
4
=
1
3
+
1
3
=
4
6
-
2
6
=
2
7
+
4
7
=
4
8
-
3
8
=
1
2
+
2
7
=
2
5
-
1
5
=
2
6
+
1
3
=
1
4
+
3
5
=
2
3
+
1
2
=
3
6
-
1
4
=
1
2
+
1
3
=
8
9
+
1
9
=
2
3
+
1
3
=
3
6
+
3
6
=
5
8
-
1
5
=
2
3
-
2
5
=
7
8
-
1
4
=
4
9
-
2
5
=
4
5
+
1
5
=
4
8
+
2
8
=
4
9
-
3
9
=
2
3
+
1
3
=
2
3
+
1
3
=
3
8
-
2
8
=
2
6
-
1
6
=
1
2
+
1
2
=
4
5
+
1
2
=
4
8
-
3
4
=
2
2
-
1
6
=
1
2
+
3
9
=
6
7
-
5
9
=
4
6
-
4
8
=
2
6
+
3
8
=
4
9
+
2
9
=
6
7
+
1
5
=
2
5
-
4
6
=
4
6
+
1
3
=
4
5
+
1
5
=
2
3
-
6
8
=
5
6
+
1
6
=
2
3
+
1
3
=
7
9
+
2
9
=
2
4
-
3
6
=
4
8
-
1
8
=
2
3
-
1
3
=
4
7
-
3
7
=
1
4
+
1
7
=
8
9
+
1
9
=
3
6
-
7
9
=
4
9
+
4
9
=
2
2
-
1
2
=
6
7
+
1
7
=
2
6
-
1
6
=
1
3
+
1
3
=
1
4
+
1
8
=
1
2
+
3
8
=
2
7
+
5
7
=
2
2
-
1
2
=
8
9
+
1
9
=
1
2
+
1
2
=
1
2
+
1
2
=
5
8
-
4
8
=
4
6
-
3
6
=
1
2
+
1
2
=
2
4
-
4
9
=
2
3
-
1
2
=
5
7
-
3
5
=
3
4
-
2
4
=
3
5
+
2
5
=
3
4
-
1
4
=
5
7
+
1
7
=
2
2
-
1
2
=
6
7
+
1
7
=