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