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ADDITION Self-Correcting Quiz - NINES

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