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ADDITION Self-Correcting Quiz - SIXES

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