Addition: Level 2: Exercise 2 (no carryovers)
Enter your answers in the boxes then click on SUBMIT:
0
+4
1
+5
4
+2
1
+0
3
+5
2
+6
4
+5
2
+3
0
+9
2
+5
1
+8
7
+0
6
+3
5
+0
4
+4
1
+7
4
+3
3
+5
2
+4
3
+1
2
+0
5
+2
2
+7
6
+0
3
+3
6
+1
0
+0
1
+4
8
+0
2
+1