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ADDITION Self-Correcting Quiz - Up Through the NINES

1
4
+  5
2
8
+  8
3
8
+  3
4
2
+  5
5
5
+  9
6
2
+  2
7
6
+  8
8
7
+  7
9
9
+  7
10
7
+  7
11
7
+  5
12
8
+  4
13
9
+  4
14
9
+  8
15
6
+  4
16
6
+  9
17
9
+  9
18
4
+  3
19
2
+  0
20
5
+  5
21
9
+  5
22
5
+  6
23
2
+  7
24
1
+  1
25
3
+  5
26
3
+  6
27
7
+  3
28
7
+  6
29
4
+  2
30
4
+  4
31
2
+  3
32
8
+  7
33
9
+  2
34
6
+  2
35
3
+  3
36
6
+  6
37
4
+  7
38
3
+  9
39
8
+  5
40
2
+  8
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