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