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