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