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