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ADDITION Self-Correcting Quiz - NINES

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