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