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