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