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