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