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