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