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ADDITION Self-Correcting Quiz - ONES

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