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