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