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