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