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