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