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