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