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