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