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