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