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