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