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