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