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