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