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