Advertisement

ADDITION Self-Correcting Quiz - FOURS

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