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