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