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