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