ADDITION Self-Correcting Quiz - ONES

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