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