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ADDITION Self-Correcting Quiz - SEVENS

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