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