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ADDITION Self-Correcting Quiz - NINES

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