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