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