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