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