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