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ADDITION Self-Correcting Quiz - NINES

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