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