Optellen Tot Twintig Flashcards
0
Q
8+4
A
12
1
Q
2+13
A
15
2
Q
13+5
A
18
3
Q
7+7
A
14
4
Q
16+3
A
19
5
Q
9+3
A
12
6
Q
4+13
A
17
7
Q
8+3
A
11
8
Q
9+9
A
18
9
Q
11+5
A
16
10
Q
17+3
A
20
11
Q
6+6
A
12
12
Q
5+6
A
11
13
Q
12+7
A
19
14
Q
2+16
A
18
15
Q
4+9
A
13
16
Q
6+8
A
14
17
Q
5+9
A
14
18
Q
13+3
A
16
19
Q
9+2
A
11
20
Q
10+5
A
15
21
Q
2+15
A
17
22
Q
13+6
A
19
23
Q
8+11
A
19
24
2+13
15
25
14+3
17
26
2+16
18
27
7+6
13
28
2+13
15
29
11+3
14
30
18+2
20
31
6+13
19
