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