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ADDITION Self-Correcting Quiz - ONES

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