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