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