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