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