ADDITION Self-Correcting Quiz - Up Through the TWOS

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