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