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