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