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