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20以内加减法同步自测口算题带答案
姓名：班级：日期：用时：分钟得分：
4
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5
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7
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4
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4
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8
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5
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10
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4
-
2
=
4
+
9
=
5
+
10
=
2
-
1
=
8
-
5
=
6
-
2
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7
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10
=
1
+
6
=
3
+
8
=
7
-
4
=
4
+
5
=
6
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7
=
6
-
2
=
7
-
6
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8
-
2
=
8
-
3
=
7
+
10
=
9
-
3
=
2
+
8
=
8
-
1
=
4
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7
=
4
-
2
=
8
-
5
=
8
-
2
=
10
-
5
=
7
+
10
=
7
-
4
=
2
-
2
=
8
-
6
=
7
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10
=
2
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8
=
6
-
6
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1
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10
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9
-
2
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7
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6
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7
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8
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8
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9
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3
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4
=
10
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5
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8
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9
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3
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7
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10
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1
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8
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3
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6
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8
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4
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6
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8
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5
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9
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6
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7
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9
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10
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1
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9
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6
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1
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3
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8
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10
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7
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9
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2
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2
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9
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5
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2
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1
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5
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6
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5
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6
=
3
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5
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8
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5
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8
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3
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3
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3
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1
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4
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1
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1
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9
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9
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3
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8
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4
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4
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6
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10
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8
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1
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3
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7
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4
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6
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9
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=
3
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2
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10
=
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9
=
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-
5
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8
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8
=
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4
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5
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2
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1
=
7
+
10
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2
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2
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6
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4
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3
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3
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4
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9
=
8
-
7
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10
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1
=
6
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7
=
6
-
1
=
8
-
7
=
5
-
1
=
6
+
7
=
7
-
5
=
7
-
5
=
6
-
3
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