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