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