ADDITION Self-Correcting Quiz - SEVENS

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