Los de erbijsom tot 20 op
Erbijsommen
|
1.
11 + 8 =
12
14
5
19
|
2.
4 + 6 =
10
7
8
12
|
3.
19 + 0 =
1
19
8
2
|
4.
8 + 4 =
17
4
12
9
|
|
5.
17 + 0 =
3
1
17
11
|
6.
11 + 1 =
10
5
7
12
|
7.
9 + 5 =
9
8
12
14
|
8.
8 + 11 =
19
8
14
9
|
|
9.
19 + 1 =
20
10
13
9
|
10.
6 + 8 =
14
17
19
5
|
11.
6 + 8 =
1
13
14
5
|
12.
3 + 2 =
9
3
5
2
|
|
13.
10 + 8 =
9
12
8
18
|
14.
20 + 0 =
12
8
14
20
|
15.
7 + 11 =
7
18
4
12
|
16.
1 + 13 =
14
4
17
16
|
|
17.
4 + 8 =
3
12
13
16
|
18.
10 + 6 =
4
1
16
5
|
19.
12 + 0 =
5
12
17
14
|
20.
6 + 7 =
13
3
12
14
|