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