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