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ADDITION Self-Correcting Quiz - SIXES

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