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