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