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