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