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