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