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