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