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