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