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