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