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小学一年级数学20以内加减法水平作业例题
姓名：班级：日期：用时：分钟得分：
3
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1
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1
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7
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1
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2
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1
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9
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10
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9
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8
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4
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10
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2
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3
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5
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9
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4
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6
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9
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1
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3
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3
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5
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7
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1
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6
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4
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5
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10
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10
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1
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5
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4
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7
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2
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8
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7
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5
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10
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7
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7
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9
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6
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10
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5
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10
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10
=
9
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7
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8
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8
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6
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6
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6
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9
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3
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2
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4
+
7
=
9
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8
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3
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6
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6
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10
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8
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1
=
2
+
8
=
7
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10
=
4
+
5
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2
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10
=
5
+
10
=
2
+
8
=
7
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2
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2
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3
=
3
+
5
=
1
+
10
=
6
+
9
=
3
+
4
=
5
+
9
=
3
+
4
=
8
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3
=
4
+
6
=
6
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5
=
2
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2
=
2
-
2
=
5
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4
=
4
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3
=
5
+
9
=
9
+
10
=
3
+
6
=
8
+
10
=
9
-
2
=
10
-
8
=
9
-
1
=
5
-
2
=
7
-
5
=
9
-
2
=
4
-
2
=
8
+
10
=
6
-
2
=
9
-
2
=
5
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3
=
1
+
2
=
3
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1
=
1
+
4
=
6
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5
=
8
+
9
=
3
-
2
=
8
-
8
=
1
+
10
=
3
+
8
=
8
-
2
=
9
-
7
=
4
+
8
=
2
-
1
=
9
+
10
=
7
-
3
=
5
-
3
=
10
-
4
=
8
+
10
=
9
-
3
=
5
-
4
=
3
+
4
=
2
+
4
=
7
-
7
=
10
-
10
=
1
+
5
=
7
+
9
=
10
-
5
=
9
-
5
=
10
-
6
=
8
-
3
=
3
+
4
=
7
-
3
=
1
+
5
=
8
-
5
=
6
-
2
=
8
-
4
=
3
+
5
=
9
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6
=
6
+
8
=
6
-
2
=
2
-
2
=
2
-
1
=
3
-
2
=
9
-
9
=
3
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2
=
6
+
8
=
3
+
9
=
3
-
3
=
2
+
5
=
4
-
2
=
1
+
10
=
2
-
2
=
7
+
9
=
8
-
3
=
3
+
4
=
1
+
6
=
1
+
4
=
7
+
9
=
10
-
5
=
2
+
4
=
1
+
10
=
10
-
1
=
7
+
10
=
6
+
7
=
9
-
5
=
10
-
4
=
1
+
8
=
1
+
3
=
3
-
3
=
2
+
5
=
7
+
9
=
10
-
4
=
6
-
4
=
3
+
6
=
8
-
7
=
9
-
1
=
5
-
3
=
6
-
1
=
1
+
5
=
4
+
6
=
3
-
3
=
10
-
9
=
5
+
6
=
2
+
10
=
9
-
7
=
5
-
5
=
7
-
2
=
6
-
5
=
8
+
9
=
6
+
10
=
3
+
8
=
9
+
10
=
3
+
10
=
3
+
5
=
8
-
2
=
4
+
6
=
1
+
9
=
5
-
5
=
5
+
9
=
4
+
10
=
2
+
10
=
5
-
5
=
2
+
7
=
8
-
5
=
3
+
9
=
9
+
10
=
10
-
2
=
2
+
3
=
10
-
3
=
7
-
7
=
10
-
1
=
9
-
7
=
7
+
10
=
3
+
10
=
6
+
7
=
6
-
5
=
5
-
2
=
10
-
7
=
3
+
4
=
1
-
1
=
8
+
10
=
6
+
10
=
10
-
2
=
3
-
2
=
5
+
9
=
10
-
2
=
4
+
8
=
3
+
6
=
6
-
6
=
10
-
4
=
6
-
6
=
2
+
8
=
10
-
7
=
4
+
5
=
6
-
6
=
3
+
4
=
10
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4
=
1
+
10
=
8
+
9
=
9
-
9
=
3
-
1
=
5
+
10
=
10
-
8
=
6
-
6
=
6
+
8
=
3
+
5
=
1
+
4
=
3
+
5
=
10
-
7
=
6
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4
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4
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2
=
9
-
1
=
5
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2
=
6
+
9
=
3
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5
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3
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7
=
9
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10
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6
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9
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3
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7
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10
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8
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8
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10
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8
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7
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