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