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