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