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