ADDITION Self-Correcting Quiz - SEVENS

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