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