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口算同分母分子数加减2
三年级数学一课一练
三年级数学一课一练
《口算同分母分子数加减2》详情
资料介绍
3年级数学上册一课一练
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《同分母分子数加减》练习
题量：
100
姓名：
成绩：
1
4
-
1
4
=
5
9
+
3
9
=
9
7
-
1
7
=
2
3
+
2
3
=
2
9
+
1
9
=
1
5
+
1
5
=
3
9
-
1
9
=
3
8
-
1
8
=
1
2
+
1
2
=
8
5
-
7
5
=
4
6
+
1
6
=
6
8
-
3
8
=
8
5
-
6
5
=
6
4
+
2
4
=
5
9
+
2
9
=
7
2
+
3
2
=
6
8
+
2
8
=
7
8
+
2
8
=
2
6
-
1
6
=
2
6
-
1
6
=
9
7
-
7
7
=
6
3
-
5
3
=
1
9
+
1
9
=
3
7
-
1
7
=
4
4
+
1
4
=
8
2
-
6
2
=
3
2
+
1
2
=
3
2
-
1
2
=
8
6
+
4
6
=
6
4
-
4
4
=
2
7
+
1
7
=
4
4
-
4
4
=
8
5
+
2
5
=
7
9
+
7
9
=
1
2
+
1
2
=
9
3
+
2
3
=
9
8
-
1
8
=
3
3
+
1
3
=
7
7
-
3
7
=
2
4
+
2
4
=
扫码自动批改
7
5
-
4
5
=
5
3
-
5
3
=
4
2
-
2
2
=
4
8
+
1
8
=
1
3
+
1
3
=
1
9
+
1
9
=
6
8
+
1
8
=
5
9
-
1
9
=
9
8
+
5
8
=
7
8
-
4
8
=
3
4
-
2
4
=
7
2
-
5
2
=
2
8
-
1
8
=
4
6
-
1
6
=
2
2
-
1
2
=
6
8
-
2
8
=
3
7
-
3
7
=
7
2
+
5
2
=
4
7
+
1
7
=
2
7
+
2
7
=
7
6
+
7
6
=
3
2
+
3
2
=
5
6
-
4
6
=
3
6
-
3
6
=
8
2
-
7
2
=
1
6
+
1
6
=
6
8
-
4
8
=
1
4
-
1
4
=
2
4
+
1
4
=
2
5
-
1
5
=
8
7
+
3
7
=
3
5
-
1
5
=
2
5
-
1
5
=
7
2
+
7
2
=
1
7
+
1
7
=
1
4
-
1
4
=
2
6
-
2
6
=
8
5
-
1
5
=
7
4
-
4
4
=
2
9
-
2
9
=
2
2
-
2
2
=
3
8
-
2
8
=
5
8
-
5
8
=
5
7
+
1
7
=
3
6
-
1
6
=
4
9
-
3
9
=
5
5
+
4
5
=
3
5
+
3
5
=
1
4
+
1
4
=
9
6
+
1
6
=
6
7
-
5
7
=
1
6
+
1
6
=
3
6
-
1
6
=
7
9
-
5
9
=
9
4
-
2
4
=
6
9
-
1
9
=
1
5
-
1
5
=
4
2
-
3
2
=
2
6
+
1
6
=
9
7
-
7
7
=
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