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