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