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