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