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ADDITION Self-Correcting Quiz - ONES

1
1
+  2
2
1
+  1
3
6
+  1
4
7
+  1
5
4
+  1
6
5
+  1
7
9
+  1
8
0
+  1
9
2
+  1
10
3
+  1
11
8
+  1
12
1
+  0
13
1
+  9
14
1
+  7
15
1
+  8
16
1
+  5
17
1
+  1
18
1
+  6
19
1
+  4
20
1
+  3
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