Interactive Addition Table
+
0
1
2
3
4
5
6
7
8
9
10
11
12
0
0
1
2
3
4
5
6
7
8
9
10
11
12
1
1
2
3
4
5
6
7
8
9
10
11
12
13
2
2
3
4
5
6
7
8
9
10
11
12
13
14
3
3
4
5
6
7
8
9
10
11
12
13
14
15
4
4
5
6
7
8
9
10
11
12
13
14
15
16
5
5
6
7
8
9
10
11
12
13
14
15
16
17
6
6
7
8
9
10
11
12
13
14
15
16
17
18
7
7
8
9
10
11
12
13
14
15
16
17
18
19
8
8
9
10
11
12
13
14
15
16
17
18
19
20
9
9
10
11
12
13
14
15
16
17
18
19
20
21
10
10
11
12
13
14
15
16
17
18
19
20
21
22
11
11
12
13
14
15
16
17
18
19
20
21
22
23
12
12
13
14
15
16
17
18
19
20
21
22
23
24
Enter a problem below with numbers between 0 and 12 and press Enter:
+
Return to Aplusmath Home