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消防员爸爸 三年级数学计算题

分数加减综合练习(2026.11)切换为日期

班级__________学号__________ 姓名__________________成绩__________
4/5
+
1/5
=
4/10
+
1/10
=
7/7
-
4/7
=
3/9
+
6/9
=
3/8
+
5/8
=
5/7
-
2/7
=
9/10
-
1/10
=
4/4
-
1/4
=
5/10
-
4/10
=
1/6
+
3/6
=
5/9
+
2/9
=
9/9
-
5/9
=
5/8
-
3/8
=
3/7
+
2/7
=
1/10
+
2/10
=
6/8
-
1/8
=
3/3
-
1/3
=
1/3
+
1/3
=
1/8
+
7/8
=
5/5
-
2/5
=
3/9
+
4/9
=
4/10
-
1/10
=
4/7
+
2/7
=
6/8
+
1/8
=
5/5
-
3/5
=
1/6
+
2/6
=
1/3
-
1/3
=
5/10
+
4/10
=
5/7
+
2/7
=
1/10
+
5/10
=
2/2
-
1/2
=
5/8
+
3/8
=
9/10
+
1/10
=
4/8
-
3/8
=
2/8
+
5/8
=
1/7
+
3/7
=
5/9
-
2/9
=
4/6
-
1/6
=
6/7
-
3/7
=
3/4
-
2/4
=
4/5
-
1/5
=
10/10
-
7/10
=
1/4
+
2/4
=
3/7
-
2/7
=
4/7
-
2/7
=
4/8
+
3/8
=
4/10
+
5/10
=
7/8
-
4/8
=
8/8
-
7/8
=
4/6
+
1/6
=