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