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ADDITION - Post-Test

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