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