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