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