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