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