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ADDITION Self-Correcting Quiz - ONES

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