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