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