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