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