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