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