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